JP2019087908A - IPv6 network system, home gateway device, migration technology application method, and application program - Google Patents

Abstract

To provide an IPv6 network system capable of performing of IPv4 network connection by an IPv6 migration technology without complicated setting by a user.SOLUTION: A setting management server 200 disposed on an IPv6 network 500 has a function that acquires IPv4 connection setting information necessary for connection to an IPv4 network 600 from an IPv6 migration connection setting management table 42 and distributes the information to the request source by using a IPv6 migration technology specified so as to be usable by an HGW apparatus 100 of the request source, which is acquired from a IPv6 migration technology management table 41, and the HGW apparatus 100 connected to the IPv6 network 500 has a function that makes an acquisition request to the setting management server 200 by IPv4 connection setting request means 12 and acquires the transmitted IPv4 connection setting information by the IPv6 migration technology regarding the HGW apparatus 100 by IPv4 connection setting acquisition means 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an IPv6 network system, a home gateway device, an IPv6 migration technology application method, and an IPv6 migration technology application program, and more particularly to a home gateway device (HGW (Home Gateway) device) for performing IPv4 network connection by IPv6 migration technology. The present invention relates to an IPv6 network system, a home gateway device, an IPv6 migration technology application method, and an IPv6 migration technology application program.

  In recent years, there has been a sharp increase in Internet connection terminals that require an Internet Protocol version 4 (hereinafter abbreviated as 'IPv4') global address, such as home gateway devices (Home Gateway devices: hereinafter abbreviated as 'HGW devices'), mobile router devices and portable terminals. IPv4 address exhaustion is progressing due to

  As one of the measures, JP-A-2017-118237 "communication apparatus, communication method, and program" of patent document 1 and JP-A-2016-105662 "network relay apparatus and network relay apparatus of patent document 2 The method of setting the operation mode of the packet relay processing unit, and the number of used IPv4 global addresses using the Internet Protocol Version 6 (hereinafter abbreviated as 'IPv6') migration technology as described in the computer program. A reduction scheme has been proposed.

  The current IPv6 migration technology as described in Patent Document 1 and Patent Document 2 does not distribute IPv4 addresses in units of terminals such as HGW devices, but Provider Edge router (which is present on the IPv6 network) This is a method of reducing the number of IPv4 global addresses used and performing access to an IPv4 network via a PE router on an IPv6 network by performing in a specific router unit called “PE router” hereinafter). .

  The current IPv6 migration technology will be described using FIG. FIG. 16 is an image diagram showing an outline of the current IPv6 migration technology. As shown in FIG. 16, each of the HGW apparatus 110 and the HGW apparatus 120 performs IPv4 communication with the HGW connection terminal 160 and the HGW connection terminal 170 using an IPv4 local address. The HGW device 110 and the HGW device 120 can also perform IPv6 communication with the IPv6 connection destination 180 via the IPv6 network 510 using the IPv6 global address.

  When the HGW device 110 and the HGW device 120 communicate with the IPv4 connection destination 190 connected to the IPv4 network 610, the HGW device 110 and the HGW device 120 may pass through a specific router called a PE router disposed on the IPv6 network 510. Connect using IPv6 migration technology. In FIG. 16, a PE router 560 operated by operator A, a PE router 570 operated by operator B, and a PE router 580 operated by operator C are disposed on the IPv6 network 510 as PE routers. Is shown.

  Here, the PE router 560 is a router that performs IPv6 migration by using DS-Lite (Dual-Stack Lite Broadband Deployments Following IPv4 Exhaustion) specified by RFC6333. The PE router 570 is a router that performs IPv6 migration using MAP-E (Mapping of Address and Port with Encapsulation) defined in RFC7597. Also, the PE router 580 is a router that performs IPv6 migration using 464 X LAT (Combination of Stateful and Stateless Translation) defined in RFC 6877.

  Then, for example, when the HGW apparatus 110 communicates with the IPv4 connection destination 190 of the IPv4 network 610 via the PE router 560, the HGW apparatus 110 accesses the DS-Lite provisioning server 560 installed on the IPv6 network 510. , DS-Lite connection setting information (ie, the IPv6 address of the PE router 560, etc.), and 'IPv4 over IPv6 tunnel' connection with the PE router 560, via the IPv4 network 610 using IPv6 migration technology Connect to the IPv4 connection destination 190.

  When the HGW apparatus 120 communicates with the IPv4 connection destination 190 of the IPv4 network 610 via the PE router 570, the HGW apparatus 120 accesses the MAP rule distribution server 420 for MAP-E installed on the IPv6 network 510. , MAP-E connection setting information (ie, the IPv6 address of the PE router 570, etc.), and 'IPv4 over IPv6 tunnel' connection with the PE router 570, and via the IPv4 network 610 using the IPv6 migration technology. Connect to the IPv4 connection destination 190.

JP, 2017-118237, A Unexamined-Japanese-Patent No. 2016-105662

  However, in the existing technology related to the present invention as shown in FIG. 16, there are various IPv6 migration technologies for connecting to the IPv4 network, and connection methods for each network operator who provide the IPv6 migration technology. Because the encapsulation method is different, when trying to connect to an IPv4 network using the IPv6 migration function in the HGW device, it is necessary to set the connection information and change the firmware according to the IPv6 network line. There was a problem.

  For example, in the case of using the DS-Lite migration technology shown in FIG. 16, it is necessary to specify the PE router 560 using the AAAA record of the DNS resource record specified in RFC 3596. In addition, when using 464 X LAT, it is necessary to specify destination prefix (Prefix) information in which the PE router 580 exists using the APL record and the RR record of the DNS resource code defined by RFC 3123. In addition, when using MAP-E, it is necessary to obtain the address of the PE router 570 from the MAP rule distribution server.

  As shown in FIG. 16, although it is possible to automate the setting by a provisioning server or the like to simplify the setting, the provisioning server differs depending on the IPv6 migration technology to be used and the provider to be provided. There is a problem that it is necessary to support a plurality of IPv6 migration technologies, and it is difficult to share settings and firmware on the HGW apparatus side.

(Object of the present invention)
The present invention has been made in view of the above problems, and an IPv6 network system capable of IPv4 network connection by an IPv6 migration technology without requiring a user of a home gateway device (HGW device) to perform complicated settings, The purpose is to provide a home gateway device, an IPv6 migration technology application method, and an IPv6 migration technology application program.

  In order to solve the aforementioned problems, the IPv6 network system, home gateway apparatus, IPv6 migration technology application method and IPv6 migration technology application program according to the present invention mainly adopt the following characteristic configurations.

(1) The IPv6 network system according to the present invention
An IPv6 network system having an IPv4 connection function of connecting a home gateway device (Home Gateway device: hereinafter abbreviated as 'HGW device') connected to an IPv6 network to an IPv4 connection destination connected to an IPv4 network via the IPv6 network And
The configuration management server having a specific function of IPv6 migration technology capable of using the HGW apparatus is provided on the IPv6 network,
The HGW device is
IPv6 connecting means for acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
IPv4 connection setting request means for connecting to the setting management server, adding an IPv6 address indicating an acquisition request source, and making the setting management server a request for acquiring IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus;
IPv4 connection setting acquisition means for acquiring the IPv4 connection setting information according to the IPv6 migration technology for the HGW apparatus transmitted as a response to the acquisition request from the setting management server, and storing the information in the storage device;
The setting management server is
The IPv6 network specified by the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source with reference to the IPv6 migration technology management table in which the IPv6 migration technology available for each IPv6 network is set and registered in advance IPv6 migration technology specifying means for specifying an IPv6 migration technology that can be used by the HGW device in
By referring to the IPv6 migration connection setting management table in which information required for the IPv4 network connection by the IPv6 migration technology registered and registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology specifying means The IPv4 connection setting information required to connect to the IPv4 network is acquired using the identified IPv6 migration technology, and the IPv4 connection setting information by the IPv6 migration technology in the HGW apparatus of the acquisition request source is acquired. And IPv4 connection setting notification means for distributing to the HGW device;
The HGW apparatus establishes a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device.

(2) The home gateway device according to the present invention
A home gateway apparatus having an IPv4 connection function of connecting to an IPv6 network and connecting to an IPv4 connection destination connected to an IPv4 network via the IPv6 network,
On the IPv6 network,
With reference to the IPv6 migration technology management table in which IPv6 migration technology that can be used for each of the IPv6 networks is set in advance and registered, the IPv6 network specified by the prefix information of the IPv6 address indicating acquisition request source is acquired IPv6 migration technology specifying means for specifying an IPv6 migration technology that can be used in a request source;
By referring to the IPv6 migration connection setting management table in which information required for the IPv4 network connection by the IPv6 migration technology registered and registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology specifying means The IPv4 connection setting information required to connect to the IPv4 network is acquired using the specified IPv6 migration technology, and the acquisition request source is acquired as the IPv4 connection setting information by the IPv6 migration technology in the acquisition request source. In a configuration in which a setting management server having an IPv4 connection setting notifying means for distributing is arranged,
IPv6 connecting means for acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
Connect to the setting management server, attach an IPv6 address indicating an acquisition request source, and issue an IPv4 connection setting request to the setting management server to request acquisition of the IPv4 connection setting information by the IPv6 migration technology related to the acquisition request source Means,
IPv4 connection setting acquisition means for acquiring the IPv4 connection setting information according to the IPv6 migration technology transmitted from the setting management server as a response to the acquisition request, and storing the information in a storage device,
A connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network is established based on the IPv4 connection setting information stored in the storage device.

(3) The IPv6 migration technology application method according to the present invention is
An IPv6 network system having an IPv4 connection function of connecting a home gateway device (Home Gateway device: hereinafter abbreviated as 'HGW device') connected to an IPv6 network to an IPv4 connection destination connected to an IPv4 network via the IPv6 network IPv6 migration technology application method for connecting to the IPv4 network by the IPv6 migration technology in
The configuration management server having a specific function of IPv6 migration technology capable of using the HGW apparatus is provided on the IPv6 network,
The HGW device is
An IPv6 connecting step of acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
An IPv4 connection setting request step of connecting to the setting management server, attaching an IPv6 address indicating an acquisition request source, and making the setting management server an acquisition request of IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus;
An IPv4 connection setting acquisition step of acquiring the IPv4 connection setting information according to the IPv6 migration technology related to the HGW apparatus transmitted as a response to the acquisition request from the setting management server, and storing the information in a storage device;
The setting management server is
The IPv6 network specified by the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source with reference to the IPv6 migration technology management table in which the IPv6 migration technology available for each IPv6 network is set and registered in advance An IPv6 migration technology specifying step of specifying an IPv6 migration technology that can be used by the HGW device in
By referring to the IPv6 migration connection setting management table in which information required for the IPv4 network connection by the IPv6 migration technology registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology identification step is performed. The IPv4 connection setting information required to connect to the IPv4 network is acquired using the identified IPv6 migration technology, and the IPv4 connection setting information by the IPv6 migration technology in the HGW apparatus of the acquisition request source is acquired. And an IPv4 connection setting notification step of delivering to the HGW device;
The HGW apparatus establishes a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device.

(4) The IPv6 migration technology application program according to the present invention
An IPv6 network system having an IPv4 connection function of connecting a home gateway device (Home Gateway device: hereinafter abbreviated as 'HGW device') connected to an IPv6 network to an IPv4 connection destination connected to an IPv4 network via the IPv6 network An IPv6 migration technology application program which is executed by a computer to connect to the IPv4 network by the IPv6 migration technology in
The configuration management server having a specific function of IPv6 migration technology capable of using the HGW apparatus is provided on the IPv6 network,
The HGW device is
IPv6 connection processing for acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
IPv4 connection setting request processing for connecting to the setting management server, attaching an IPv6 address indicating an acquisition request source, and making the setting management server an acquisition request for IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus;
IPv4 connection setting acquisition processing for acquiring the IPv4 connection setting information according to the IPv6 migration technology for the HGW apparatus transmitted as a response to the acquisition request from the setting management server, and storing the information in a storage device;
The setting management server is
The IPv6 network specified by the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source with reference to the IPv6 migration technology management table in which the IPv6 migration technology available for each IPv6 network is set and registered in advance IPv6 migration technology specification processing that specifies the IPv6 migration technology that can be used by the HGW device in
By referring to the IPv6 migration connection setting management table in which the information required for the IPv4 network connection by the IPv6 migration technology registered and registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology specification processing The IPv4 connection setting information required to connect to the IPv4 network is acquired using the identified IPv6 migration technology, and the IPv4 connection setting information by the IPv6 migration technology in the HGW apparatus of the acquisition request source is acquired. IPv4 connection setting notification processing for distribution to the HGW device,
The HGW apparatus establishes a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device.

  According to the IPv6 network system, home gateway device, IPv6 migration technology application method and IPv6 migration technology application program of the present invention, the following effects can be achieved.

  First, the initialization of the HGW apparatus can be generalized. The reason is that for each IPv6 network, configuration management that registers in advance the available IPv6 migration technology and the file (that is, Config file: configuration file) that contains the connection configuration information required to perform connection. Since the server is arranged on the IPv6 network, if the HGW device can connect to the corresponding IPv6 network circuit, it can be used in the IPv6 migration function that the IPv6 network circuit supports, that is, the HGW device This is because configuration changes to possible IPv6 migration functions can be obtained from the configuration management server. Thus, the initial setting for the first installed HGW device can be implemented generically.

  Second, it can facilitate adaptation to new IPv6 migration technology and changes in the network environment. The reason is that the setting information related to the IPv6 migration technology can be collected on the setting management server side, so the HGW device side does not have to manage the information related to the IPv6 migration technology, and maintenance on the setting management server side By doing this, it is possible to easily cope with changes in the network environment such as new IPv6 migration technology and changes in specifications of PE routers and provisioning servers.

It is a block diagram which shows an example of the system configuration | structure of the IPv6 network system which concerns on the 1st Embodiment of this invention, and the internal structure of a HGW apparatus and a setting management server. It is a flowchart for demonstrating an example of operation | movement of the HGW apparatus and setting management server which were shown in FIG. 1 as 1st Embodiment of this invention. It is a table which shows the concrete image of the registration content of the IPv6 migration technique management table memorize | stored in the memory | storage device of the setting management server of FIG. It is a table which shows the concrete image of the registration content of the IPv6 migration connection setting management table memorize | stored in the memory | storage device of the setting management server of FIG. It is a block diagram which shows an example of an internal structure of the HGW apparatus in the IPv6 network system which concerns on the 2nd Embodiment of this invention, and a setting management server. It is a flowchart for demonstrating an example of operation | movement of the HGW apparatus shown in FIG. 5 as a 2nd Embodiment of this invention, and a setting management server. It is a table which shows the concrete image of the registration content of the IPv6 migration technique management table memorize | stored in the memory | storage device of the setting management server of FIG. It is a block diagram which shows an example of an internal structure of the HGW apparatus in the IPv6 network system which concerns on the 3rd Embodiment of this invention, a path | route information management server, and a provisioning server. It is a flowchart for demonstrating an example of operation | movement of the HGW apparatus shown in FIG. 8 as a 3rd Embodiment of this invention, a path | route information management server, and a provisioning server. It is a table which shows the concrete image of the registration content of the routing information management table memorize | stored in the memory | storage device of the HGW apparatus of FIG. It is a table which shows the concrete image of the registered content of the provider information management table memorize | stored in the memory | storage device of the HGW apparatus of FIG. It is a block diagram which shows an example of an internal structure of the HGW apparatus in the IPv6 network system which concerns on the 4th Embodiment of this invention, a setting management server, and a provisioning server. It is a flowchart for demonstrating an example of operation | movement of the HGW apparatus shown in FIG. 12 as a 4th Embodiment of this invention, a setting management server, and a provisioning server. It is a table which shows the concrete image of the registration content of the IPv6 migration technique management table memorize | stored in the memory | storage device of the setting management server of FIG. It is a table which shows the concrete image of the registration content of the IPv4 connection setting management table memorize | stored in the memory | storage device of the setting management server of FIG. It is an image figure showing an outline of the present IPv6 migration technology.

  Hereinafter, preferred embodiments of an IPv6 network system, a home gateway device, an IPv6 migration technology application method, and an IPv6 migration technology application program according to the present invention will be described with reference to the attached drawings. In the following description, although the IPv6 network system, home gateway apparatus and IPv6 migration technology application method according to the present invention will be described, such an IPv6 migration technology application method may be implemented as a computer executable IPv6 migration technology application program. Needless to say, the IPv6 migration technology application program may be recorded on a computer readable recording medium. Further, reference numerals in the drawings attached to the following drawings are for convenience added to the respective elements as an example for aiding understanding, and it is needless to say that the present invention is not intended to be limited to the illustrated embodiment. Yes.

(Features of the present invention)
Before describing the embodiments of the present invention, the features of the present invention will first be outlined. The present invention, in a home gateway device for home or office using the IPv6 migration technology, acquires IPv6 migration related setting information for IPv4 network connection from a server on the IPv6 network after establishing connection to the IPv6 network. The main feature is to automatically configure the home gateway device.

  That is, according to the present invention, there is provided a setting management server in which Config files (setting files) including available IPv6 migration technology and connection setting information necessary for connection are registered in advance for each IPv6 network. If the HGW device can connect to the corresponding IPv6 network circuit by placing it on the IPv6 network, the configuration change or firmware change to the IPv6 migration function supported by the IPv6 network circuit is applicable. The main feature is that it can be acquired from the configuration management server.

  Thus, a user using a communication device having an IPv4 address in a home or office can connect an IPv4 network using IPv6 migration technology without complicated settings even in an environment connected to an IPv6 network. It will be possible to do. In other words, it is possible to generically implement settings and firmware for the HGW apparatus installed for the first time, and to easily adapt to new IPv6 migration technology and changes in the network environment.

First Embodiment
Next, a first embodiment of the present invention will be described in detail with reference to the drawings.

(Example of Configuration of First Embodiment)
First, an example of a system configuration of an IPv6 network system according to the first embodiment of the present invention and an internal configuration of a home gateway (Home Gateway: hereinafter abbreviated as 'HGW') device and a configuration management server will be described using FIG. explain. FIG. 1 is a configuration diagram showing an example of a system configuration of an IPv6 network system and an internal configuration of an HGW apparatus and a setting management server according to a first embodiment of the present invention, and FIG. FIG. 1B shows an example of the system configuration of the IPv6 network system according to the embodiment, and FIG. 1B shows an example of the internal configuration of the HGW apparatus and the setting management server according to the first embodiment.

  In the IPv6 network system shown in FIG. 1A, a PE router 550 for connecting between the IPv6 network 500 and the IPv4 network 600 is disposed on the IPv6 network 500. Then, when the HGW connecting terminal 150 connected to the HGW apparatus 100 communicates with the IPv4 apparatus 650 connected to the IPv4 network 600, the HGW apparatus 100 is configured to be disposed on the IPv6 network 500 in the IPv6 network system. The management server 200 is accessed to obtain information on IPv6 migration. Then, based on the acquired information, the HGW connection terminal 150 is used as an IPv4 device of the communication partner connected to the IPv4 network 600 via the corresponding PE router 550 on the IPv6 network 500 using the IPv6 migration technology. It is configured to allow communication with the H.650.

  Further, as shown in FIG. 1B, the HGW apparatus 100 internally includes at least the data processing apparatus 1 and the storage apparatus 2. The data processing apparatus 1 includes an IPv6 connection unit 11 and an IPv4 connection setting request unit 12 , IPv4 connection setting acquisition means 13 at least, and the storage device 2 internally has at least an IPv6 migration connection setting information management table 21.

  The IPv6 connection unit 11 has a function of acquiring information for connecting to the IPv6 network 500 from a network device such as an upper IPv6 router, and connecting the HGW apparatus 100 with the IPv6 network 500. Further, the IPv4 connection setting request means 12 has a function of requesting the setting management server 200 on the IPv6 network 500 to acquire IPv4 connection setting information by the IPv6 migration technology regarding the HGW apparatus 100.

  In addition, the IPv4 connection setting acquisition unit 13 receives the IPv4 connection setting information according to the IPv6 migration technology for the HGW apparatus 100 notified of from the setting management server 200 on the IPv6 network 500, the IPv6 migration connection setting information management table of the storage device 2. 21 has a function to save. That is, the IPv6 migration connection setting information management table 21 stores connection setting information for connecting the HGW apparatus 100 to the IPv4 network 600 via the IPv6 network 500 using the IPv6 migration technology.

  Further, as shown in FIG. 1B, the setting management server 200 on the IPv6 network 500 internally includes at least the data processing device 3 and the storage device 4. The data processing device 3 internally includes at least IPv6 migration technology specifying means 31 and IPv4 connection setting notification means 32. The storage device 4 internally contains an IPv6 migration technology management table 41 and an IPv6 migration connection setting management table 42. At least.

  The IPv6 migration technology specifying unit 31 manages the IPv6 migration technology of the storage device 4 when the IPv4 connection setting request unit 12 of the HGW apparatus 100 requests acquisition of IPv4 connection setting information by the IPv6 migration technology for the HGW apparatus 100. It has a function of identifying the IPv6 migration technology available in the IPv6 network circuit to which the HGW apparatus 100 of the request source is connected with reference to the table 41.

  Further, the IPv4 connection setting notifying means 32 acquires information necessary for the IPv4 connection by the IPv6 migration technology specified by the IPv6 migration technology specifying means 31 with reference to the IPv6 migration connection setting management table 42 of the storage device 4 It has a function of notifying the HGW apparatus 100 as IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100 of the request source.

  The IPv6 migration technology management table 41 stored in the storage device 4 of the setting management server 200 stores information for specifying the IPv6 migration technology that can be used by each HGW apparatus 100, the details of which will be described later. Further, the IPv6 migration connection setting management table 42 also stores information necessary for the IPv4 network connection by the IPv6 migration technology for each HGW apparatus 100, although the details will be described later.

(Description of Operation of First Embodiment)
Next, operations of the HGW apparatus 100 and the setting management server 200 in the network system shown in FIG. 1 as the first embodiment of the present invention will be described in detail with reference to FIGS.

  First, operations of the HGW apparatus 100 and the setting management server 200 will be described using the flowchart of FIG. FIG. 2 is a flowchart for explaining an example of the operation of the HGW apparatus 100 and the setting management server 200 shown in FIG. 1 as the first embodiment of the present invention. In the flowchart of FIG. 2, after the HGW apparatus 100 first detects link-up with the upper network, the upper IPv6 router connects the IPv6 address, DNS server address, default gateway, etc. to the IPv6 network 500 by the IPv6 connection means 11. The necessary information is acquired, and a connection to the IPv6 network 500 is established (step A1).

  After acquiring the IPv6 address and DNS server address and establishing the connection to the IPv6 network 500, the HGW apparatus 100 next connects to the setting management server 200 on the IPv6 network 500, and the IPv4 connection setting request means 12 Thus, the setting management server 200 is requested to acquire the IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus 100 (step A2).

  When receiving the acquisition request of the IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus 100 from the HGW apparatus 100, the setting management server 200 uses the IPv6 migration technology specifying unit 31 to set the IPv6 migration technology management table 41 of the storage apparatus 4. Referring to the request, the HGW apparatus 100 of the request source identifies an available IPv6 migration technology (step A3).

  After that, the setting management server 200 uses the IPv4 connection setting notification means 32 to set the IPv4 connection setting information necessary for connecting using the IPv6 migration technology specified by the IPv6 migration technology specifying means 31 to the IPv6 of the storage device 4. The migration connection setting management table 42 is referred to and acquired. The IPv4 connection setting notifying means 32 notifies the HGW apparatus 100 of the acquired IPv4 connection setting information as IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100 of the request source (step A4)

  When the notification of the IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus 100 is received from the setting management server 200, the HGW apparatus 100 performs the IPv4 connection setting information received by the IPv6 migration technology related to the HGW apparatus 100 The acquiring unit 13 stores the information in the IPv6 migration connection setting information management table 21 of the storage device 2 (step A5).

  Then, the HGW apparatus 100 refers to the IPv4 connection setting information stored in the IPv6 migration connection setting information management table 21 and changes the connection setting to use the specified IPv6 migration technology to make the IPv6 network 500 A connection to the IPv4 network 600 is established (step A6).

(Description of Specific Example Regarding Operation of First Embodiment)
Next, using a specific example, the operation of the first embodiment of the present invention will be described in more detail with reference to the flowchart of FIG.

  First, in step A1 of FIG. 2, after detecting the link-up with the upper network, the HGW apparatus 100 detects the upper IPv6 router from the upper IPv6 router by using the IPv6 connection unit 11, and then the domain name system (Domain Name System: The information necessary for connection with the IPv6 network 500, such as 'DNS', abbreviated server address, default gateway, etc. is acquired, and the connection to the IPv6 network 500 is established (step A1).

  In this specific example, with regard to the IPv6 address, using the "router advertisement" (Router Advertisement: hereinafter abbreviated as "RA") defined by RFC 4862, the top part of the IPv6 address called "Prefix" information from the upper router It is assumed that the HGW apparatus 100 automatically generates an IPv6 address by acquiring an IPv6 network). With regard to DNS server addresses, obtain DNS server addresses from a DHCPv6 server using “IPv6 Address Dynamic Assignment Protocol” (Dynamic Host Configuration Protocol for IP version 6: hereinafter abbreviated as 'DHCPv6') specified by RFC3315. It shall be.

  However, the IPv6 address and the DNS server address are not limited to those described above. For example, a method of distributing prefix information or an IPv6 address by a DHCPv6 server, an IPv6 address specified by a provider, and The DNS server address may be acquired using another method, such as the user manually setting it.

  After establishing the connection to the IPv6 network 500, next, in step A2 of FIG. 2, the HGW apparatus 100 connects to the setting management server 200 on the IPv6 network 500, and the IPv4 connection setting request means 12 A request for acquiring information (that is, IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100) is issued to the setting management server 200 (step A2).

  In this specific example, the HGW apparatus 100 stores in advance information on a unique resource locator (hereinafter abbreviated as 'URL') of the setting management server 200, and establishes a connection to the IPv6 network 500. After that, using the HTTP (Hypertext Transfer Protocol) or HTTPS (Hypertext Transfer Protocol over Secure Socket Layer) protocol for the URL of the setting management server 200 on the IPv6 network 500, the IPv4 connection setting request means 12 It is assumed that the acquisition request of IPv4 connection setting information is made. Furthermore, in this specific example, a series of communication between the HGW apparatus 100 and the setting management server 200 performed in each step up to the subsequent step A5 as well as the step A2 is performed by the HTTP or HTTPS protocol. It shall be performed by IPv6 communication.

  Also, in this specific example, it is assumed that the information exemplified in the tables of FIG. 3 and FIG. 4 is registered in advance in the IPv6 migration technology management table 41 and the IPv6 migration connection setting management table 42 of the setting management server 200, respectively. It shall be. 3 is a table showing a specific image of the registered contents of the IPv6 migration technology management table 41 stored in the storage device 4 of the setting management server 200 of FIG. 1, and FIG. 4 is a table of the setting management server of FIG. It is a table showing a specific image of the registered contents of the IPv6 migration connection setting management table 42 stored in the storage device 4 of 200.

  Here, in the IPv6 migration technology management table 41, as shown in FIG. 3, information on each column of the IPv6 network 41a, the IPv6 migration 41b and the Config file 41c is registered in advance. Then, for each IPv6 network 500, setting including information on the IPv6 migration technology that the request source HGW apparatus 100 can use in each IPv6 network 500 and IPv4 connection setting information necessary for connecting to the IPv4 network 600 by the IPv6 migration technology It is assumed that the file name of the file (Config file) is stored in advance. In the IPv6 network 41a column, as information for specifying each IPv6 network 500, prefix (Prefix) information (upper 64 bits) of an IPv6 address is set and registered.

  Further, it is assumed that detailed information on each setting file (Config file) is stored in advance in the IPv6 migration connection setting management table 42, and as shown in FIG. 4, the Config file 42a, Config-ID 42b, PE router 42c, Information related to each field such as the provisioning server 42d is registered in advance. Then, information such as each configuration file (Config file), that is, Config-ID for specifying IPv4 connection setting information, URL of PE (Provider Edge router) on IPv6 network 500, URL of provisioning server, etc. is stored in advance. It is assumed that

  When receiving the acquisition request of the IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100 from the HGW apparatus 100 by the operation of step A2, the setting management server 200 requests the acquisition request by the IPv6 migration technology specifying unit 31. The IPv6 address of the original HGW apparatus 100 is confirmed. Then, the setting management server 200 uses the IPv6 network 41 a of the IPv6 migration technology management table 41 of the storage device 4 based on the prefix (Prefix) information (upper 64 bits) of the IPv6 address of the HGW apparatus 100 of the request source of the acquisition request. With reference to the column, the request source HGW apparatus 100 identifies the IPv6 migration technology that can be used in the IPv6 network 500, and is necessary for performing connection to the IPv4 network 600 by the identified IPv6 migration technology The configuration file (setting file) including the specific connection setting information is specified (step A3).

  In this specific example, it is assumed that the IPv6 address of the HGW apparatus 100 is, for example, “2001: 1234 :: 1234: 5678: 90 ab: cdef”. The prefix (Prefix) information (upper 64 bits) of the IPv6 address of the HGW apparatus 100 is “2001: 1234 :: / 64”, and the first line of the IPv6 network 41 a column of the IPv6 migration technology management table 41 of FIG. It corresponds to "2001: 1234 :: / 64" in the eye. Therefore, by referring to the IPv6 migration 41b column and the Config file 41c column in the first line of the IPv6 migration technology management table 41 of FIG. 3, available IPv6 migration technology and connection setting information necessary for performing connection can be obtained. It will identify the included Config file (configuration file).

  That is, the IPv6 migration technology that can be used in the IPv6 network 500 with the HGW apparatus 100 having the IPv6 address “2001: 1234 :: 1234: 5678: 90 ab: cdef” is “DS-Lite” in the IPv6 migration 41 b column. And the Config file (setting file) that contains the connection setting information necessary for connecting to the IPv4 network 600 using the IPv6 migration technology "DS-Lite" is "Config101.bin" in the Config file 41c column. Identified as

  Next, the configuration management server 200 is required to connect to the IPv4 network 600 using detailed information on the Config file (configuration file) specified by the IPv6 migration technology specifying means 31 in step A3, that is, using the IPv6 migration technology. The IPv4 connection setting notification unit 32 acquires the IPv4 connection setting information with reference to the IPv6 migration connection setting management table 42 of the storage device 4. The IPv4 connection setting notifying means 32 notifies the HGW apparatus 100 of the acquired IPv4 connection setting information as IPv4 connection setting information based on the IPv6 migration technology related to the requester HGW apparatus 100 (step A4).

  In this specific example, the file name of the Config file (setting file) specified in step A3 includes the IPv4 connection setting information necessary for connecting to the IPv4 network 600 using the IPv6 migration technology “DS-Lite”. Since "Config101.bin", the setting management server 200 refers to the Config file 42a column of the IPv6 migration connection setting management table 42 of FIG. Detect that it corresponds to

  Therefore, referring to the first line of the IPv6 migration connection setting management table 42 of FIG. 4, the detailed information on the corresponding Config file “Config101.bin”, ie, “Identifier of the Config-ID 42b” as the identifier of the IPv4 connection setting information. As URL information of the server that stores “101” and further information for setting up connection to the IPv4 network 600 using the IPv6 migration technology “DS-Lite” (ie, the IPv6 address of the PE router 550, etc.) Acquire “dslite.server1.com” in the provisioning server 42 d column.

  After that, the configuration management server 200 uses the available IPv6 migration technology “DS-Lite” acquired from the IPv6 migration technology management table 41 of FIG. 3, the file name “Config101.bin” of the Config file (configuration file), and IPv6. The identifier "101" of the IPv4 connection setting information acquired from the migration connection setting management table 42 and the URL information "dslite.server1.com" of the provisioning server by the IPv4 connection setting notification means 32 Is notified to the HGW apparatus 100 of the acquisition request source as IPv4 connection setting information by the above.

  As a result, when the notification of the IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus 100 is received from the setting management server 200, the HGW apparatus 100 receives the received IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus 100 It is stored in the IPv6 migration connection setting information management table 21 of the storage device 2 by the IPv4 connection setting acquisition means 13 (step A5).

  In this specific example, available IPv6 migration technology “DS-Lite”, file name “Config101.bin” of Config file (setting file), IPv4 connection as IPv4 connection setting information by the IPv6 migration technology for the HGW apparatus 100 Information of each of the identifier “101” of the setting information and the URL information “dslite.server1.com” of the provisioning server is stored in the IPv6 migration connection setting information management table 21 of the storage device 2.

  After that, the HGW apparatus 100 changes the setting in the IPv4 connection setting information based on the IPv6 migration technology stored in the IPv6 migration connection setting information management table 21 to use IPv6 migration technology to perform IPv4 over the IPv6 network 500. A connection to the network 600 can be established and connected to, for example, an IPv4 device 650 connected to the IPv4 network 600 as an IPv4 connection destination (step A6).

  That is, in this specific example, the HGW apparatus 100 connects to the URL information “dslite.server1.com” of the provisioning server installed on the IPv6 network 500, and the IPv4 network by the IPv6 migration technology “DS-Lite”. A connection to the IPv4 network 600 can be established by obtaining the information needed for connection to 600 (ie, the IPv6 address of the PE router 550 dedicated to “DS-Lite”, etc.).

  As described above, in order for the HGW apparatus 100 to connect to the IPv4 network 600 using the IPv6 migration technology, it is necessary to connect to the network line of the IPv6 network 500 provided by any one of the line providers. The IPv6 migration technology that can be used may differ depending on the network operator. Here, the line operator of the IPv6 network 500 (that is, the network name of the IPv6 network 500) can be identified by the prefix (Prefix) information of the IPv6 address.

  Therefore, in this specific example, from the prefix (Prefix) information of the IPv6 address (in the setting example of the IPv6 network 41a column of the IPv6 migration technology management table 41 of FIG. 3, the upper 64 bits of the IPv6 address corresponds) Network operators (ie operators of IPv6 network) and IPv6 migration technology to be used. Then, the connection setting information (Config file) necessary for connecting to the IPv4 network 600 using the corresponding IPv6 migration technology is notified to the HGW apparatus 100 in the form of a binary file using the HTTP or HTTPS protocol. .

  Thus, the user of the HGW apparatus 100 does not understand the connection network or the IPv6 migration technology and does not make complicated settings, and the connection setting information necessary for connecting to the IPv4 network 600 using the corresponding IPv6 migration technology. Can be automatically set to the HGW apparatus 100.

(Description of the effect of the first embodiment)
As described above in detail, in the first embodiment, the following effects can be achieved.

  First, the initialization of the HGW apparatus 100 can be generalized. The reason is, as shown in FIG. 1, for each IPv6 network 500, register in advance a Config file (setting file) including available IPv6 migration technology and connection setting information necessary for connection. Since the existing configuration management server 200 is disposed on the IPv6 network 500, if the HGW apparatus 100 can connect to the IPv6 network line, the setting change to the IPv6 migration function supported by the IPv6 network line Is obtained from the setting management server 200. Thus, the initial setting for the HGW apparatus 100 installed for the first time can be implemented generically.

  Second, it can facilitate adaptation to new IPv6 migration technology and changes in the network environment. The reason is that, as shown in FIG. 1, setting information related to the IPv6 migration technology can be collected on the setting management server 200 side, so the HGW apparatus 100 side does not manage information related to the IPv6 migration technology. This is because, by performing maintenance on the setting management server 200 side, it is possible to easily cope with changes in the network environment such as new IPv6 migration technology and changes in specifications of PE routers and provisioning servers.

Second Embodiment
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. In the second embodiment, as information automatically set in the HGW apparatus 100 from the setting management server 200 disposed on the IPv6 network 500, IPv4 connection setting information by the IPv6 migration technology as described in the first embodiment. In addition to the automatic setting, a case is also described in which firmware for executing a network connection operation in the HGW apparatus is automatically introduced and set.

(Example of Configuration of Second Embodiment)
First, an example of the internal configuration of the HGW apparatus and the setting management server according to the second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a block diagram showing an example of the internal configuration of the HGW apparatus and the setting management server in the IPv6 network system according to the second embodiment of the present invention. The system configuration of the IPv6 network system in the second embodiment is not shown because it is the same as the system configuration of the IP network system according to the first embodiment shown in FIG. 1A. In the second embodiment, the HGW apparatus 100A shown in FIG. 5 is disposed instead of the HGW apparatus 100 in FIG. 1A, and in FIG. 5 separately from the setting management server 200 in FIG. The configuration management server 200A shown is arranged and configured.

  The HGW device 100A shown in FIG. 5 internally includes at least a data processing device 1A and a storage device 2A. The data processing device 1A includes an IPv6 connection unit 11, a firmware / IPv4 connection setting request unit 12A, and a firmware / IPv4 connection setting. The storage unit 2A internally includes at least an IPv6 migration connection setting information management table 21A.

  The IPv6 connection unit 11 obtains the same function as the IPv6 connection unit 11 in the HGW apparatus 100 of FIG. 1 (that is, acquires information for connecting to the IPv6 network 500 from a network device such as an upper IPv6 router), and the HGW apparatus 100A. And the IPv6 network 500).

  Also, the firmware / IPv4 connection setting request means 12A has the same function as the IPv4 connection setting request means 12 in the HGW apparatus 100 of FIG. 1 (that is, IPv6 related to the HGW apparatus 100A with respect to the setting management server 200A on the IPv6 network 500). In addition to the function of requesting acquisition of IPv4 connection setting information by migration technology, the firmware information for executing the network connection operation in the HGW apparatus 100A for the setting management server 200A on the IPv6 network 500 is further obtained. It has a function to make a request.

  Also, the firmware / IPv4 connection setting acquiring unit 13A has the same function as the IPv4 connection setting acquiring unit 13 in the HGW apparatus 100 of FIG. 1 (that is, the HGW apparatus 100A notified from the setting management server 200A on the IPv6 network 500). In addition to the function of storing IPv4 connection setting information in the IPv6 migration connection setting information management table 21A of the storage device 2A according to the IPv6 migration technology related to the HGW apparatus 100A notified from the setting management server 200A. Is stored in the IPv6 migration connection setting information management table 21A of the storage device 2A.

  The firmware updating unit 14 also has a function of updating the firmware of the HGW apparatus 100A to the firmware information on the HGW apparatus 100A acquired from the setting management server 200A and stored in the IPv6 migration connection setting information management table 21A. There is.

  Also, in the IPv6 migration connection setting information management table 21A stored in the storage device 2A, the same information as the IPv6 migration connection setting information management table 21 in the HGW apparatus 100 of FIG. 1 (that is, the HGW apparatus 100A is IPv6 migration In addition to storing connection setting information for connecting to the IPv4 network 600 via the IPv6 network 500 by the technology, firmware information acquired from the setting management server 200A (that is, the IPv6 migration technology in the HGW apparatus 100A) The firmware information for executing the used network connection operation is stored.

  Next, the setting management server 200A on the IPv6 network 500 shown in FIG. 5 internally includes at least a data processing device 3A and a storage device 4A. The data processing apparatus 3A includes at least an IPv6 migration technology specifying unit 31 and a firmware / IPv4 connection setting notification unit 32A. The storage apparatus 4A includes an IPv6 migration technology management table 41A, an IPv6 migration connection setting management table 42, and a firmware management table. At least 43 is provided.

  The IPv6 migration technology specifying unit 31 has the same function as the IPv6 migration technology specifying unit 31 in the setting management server 200 of FIG. 1 (that is, the firmware / IPv4 connection setting request unit 12A of the HGW apparatus 100A) performs the IPv6 migration related to the HGW apparatus 100A. When acquisition of IPv4 connection setting information by technology is requested, IPv6 migration technology management table 41A of storage device 4A is referred to, and IPv6 migration technology available in the line to which HGW apparatus 100A of request source is connected is specified Function)).

  Also, the firmware / IPv4 connection setting notifying means 32A has the same function as the IPv4 connection setting notifying means 32 in the setting management server 200 of FIG. 1 (ie, for IPv4 connection by the IPv6 migration technology specified by the IPv6 migration technology specifying unit 31). Function of acquiring information necessary for the storage device 4A with reference to the IPv6 migration connection setting management table 42 and notifying the HGW device 100A as IPv4 connection setting information by the IPv6 migration technology regarding the HGW device 100A of the request source And the firmware information for enabling the specified IPv6 migration technology to be available with reference to the firmware management table 43 of the storage device 4A, and the HGW device of the request source It has a function to notify the 00A.

  Also, the IPv6 migration technology management table 41A provided in the storage device 4 is the same information as the IPv6 migration technology management table 41 in the setting management server 200 of FIG. 1 (that is, the IPv6 migration technology available to each HGW device 100A). In addition to storing information (for identification), the file name of the firmware information regarding each HGW device 100A is stored.

  Also, the IPv6 migration connection setting management table 42 is the same information as the IPv6 migration connection setting management table 42 in the setting management server 200 of FIG. 1 (that is, information required for IPv4 network connection by IPv6 migration technology for each HGW device 100A) I remember. Also, the firmware management table 43 enables firmware connection information to be executed using firmware information specified by the file name of firmware information in the IPv6 migration technology management table 41A, that is, the HGW device 100A using the IPv6 migration technology. Stores firmware information.

(Description of Operation of Second Embodiment)
Next, operations of the HGW apparatus 100A and the setting management server 200A in the network system shown in FIG. 5 as the twelfth embodiment of the present invention will be described in detail with reference to FIG. 6, FIG. 7 and FIG.

  First, the operations of the HGW apparatus 100A and the setting management server 200A will be described using the flowchart of FIG. FIG. 6 is a flowchart for explaining an example of the operation of the HGW apparatus 100A and the setting management server 200A shown in FIG. 5 as the second embodiment of the present invention. In the flowchart of FIG. 6, the HGW apparatus 100A first detects the link from the upper IPv6 router by the IPv6 connection unit 11 after detecting the link-up with the upper network, as in step A1 of FIG. 2 in the first embodiment. And information necessary for connection with the IPv6 network 500, such as DNS server address, etc., and establish a connection to the IPv6 network 500 (step A11).

  After acquiring the IPv6 address and the DNS server address and establishing the connection to the IPv6 network 500, the HGW apparatus 100A then connects to the setting management server 200A on the IPv6 network 500 to request the firmware / IPv4 connection setting request. The means 12A requests the setting management server 200A to acquire the IPv4 connection setting information and the firmware information by the IPv6 migration technology related to the HGW apparatus 100A (step A12).

  When receiving an acquisition request of IPv4 connection setting information and firmware information by the IPv6 migration technology related to the HGW apparatus 100A from the HGW apparatus 100A, the setting management server 200A manages the IPv6 migration technology management of the storage apparatus 4A by the IPv6 migration technology specifying means 31. While referring to the table 41A, the request source HGW apparatus 100A identifies the available IPv6 migration technology, and identifies the file name where the firmware information requested from the HGW apparatus 100A is stored (step A13).

  After that, the setting management server 200A stores the IPv4 connection setting information necessary for connecting using the IPv6 migration technology specified by the IPv6 migration technology specifying unit 31 by the firmware / IPv4 connection setting notification unit 32A in the storage device 4A. The IPv6 migration connection setting management table 42 is referred to and acquired. Further, the setting management server 200A acquires the firmware information specified by the IPv6 migration technology specifying means 31 by the firmware / IPv4 connection setting notifying means 32A with reference to the firmware management table 43 of the storage device 4A.

  The setting management server 200A then uses the obtained IPv4 connection setting information and firmware information as the IPv4 connection setting information and firmware information of the requesting HGW apparatus 100A according to the IPv6 migration technology by the firmware / IPv4 connection setting notification means 32A. Notify the HGW apparatus 100A (step A14)

  When the HGW apparatus 100A receives, from the setting management server 200A, a notification of the IPv4 connection setting information and firmware information by the IPv6 migration technology related to the HGW apparatus 100A, the received IPv4 connection setting information and firmware related to the HGW apparatus 100A by IPv6 migration technology The information is stored in the IPv6 migration connection setting information management table 21A of the storage device 2A by the firmware / IPv4 connection setting acquisition unit 13A (step A15).

  After that, the HGW apparatus 100A updates the firmware of the HGW apparatus 100A with the firmware information acquired from the setting management server 200A with reference to the IPv6 migration connection setting information management table 21A by the firmware update unit 14 (step A16) ). Then, the HGW apparatus 100A refers to the IPv4 connection setting information stored in the IPv6 migration connection setting information management table 21A, changes the connection setting, and utilizes the specified IPv6 migration technology to set the IPv6 network 500. The connection to the IPv4 network 600 is established (step A17).

  Next, using a specific example, the operation of the second embodiment of the present invention will be described in more detail with reference to the flowchart of FIG.

  First, in step A11 of FIG. 6, the HGW apparatus 100A performs the same operation as described in the specific example of step A1 of FIG. Information necessary for connection with the IPv6 network 500, such as an IPv6 address, a DNS (domain name system) server address, and a default gateway is acquired from the upper IPv6 router, and a connection to the IPv6 network 500 is established (step A11).

  After establishing the connection to the IPv6 network 500, next, in step A12 of FIG. 6, the HGW device 100A connects to the setting management server 200A on the IPv6 network 500, and the firmware / IPv4 connection setting request means 12A The setting management server 200A is requested to obtain connection setting information (ie, IPv4 connection setting information based on the IPv6 migration technology of the HGW apparatus 100A) and firmware information of the HGW apparatus 100A (step A12).

  In this specific example, the HGW apparatus 100A stores the information of the URL of the setting management server 200A in advance and establishes the connection to the IPv6 network 500 as in the specific example shown in the first embodiment. After that, with respect to the URL of the setting management server 200A on the IPv6 network 500, using the HTTP or HTTPS protocol, the firmware / IPv4 connection setting request means 12A requests acquisition of IPv4 connection setting information and firmware. Do. Furthermore, in this specific example, a series of communication between the HGW device 100A and the setting management server 200A, which is performed not only in step A12 but also in each step up to the subsequent step A15, is performed by the HTTP or HTTPS protocol. It shall be performed by IPv6 communication.

  Further, in this specific example, it is assumed that information exemplified in the tables of FIG. 7 and FIG. 4 is registered in advance in the IPv6 migration technology management table 41A of the setting management server 200A and the IPv6 migration connection setting management table 42, respectively. It shall be. FIG. 7 is a table showing a specific image of the registered contents of the IPv6 migration technology management table 41A stored in the storage device 4A of the setting management server 200A of FIG. 4 is the IPv6 migration connection setting management table 42 exemplified in the first embodiment, and also in this specific example, the Config file 42a, the Config-ID 42b, the PE router 42c, and the provisioning server 42d illustrated in FIG. 4. , Etc. are registered in advance as specific registration contents.

  In the IPv6 migration technology management table 41A shown in FIG. 7, the information related to the IPv6 network 41a, the IPv6 migration 41b and the Config file 41c similar to the IPv6 migration technology management table 41 shown in FIG. 3 as a specific example in the first embodiment Although registered in advance, information related to a firmware file 41d for setting a file name storing firmware information is also added and registered.

  That is, in the IPv6 migration technology management table 41A, for each IPv6 network 500, information related to the IPv6 migration technology that the HGW apparatus 100A of the request source can use in each IPv6 network 500, for connecting to the IPv4 network 600 by the IPv6 migration technology Information on the file name of the configuration file (Config file) including necessary connection setting information, and information on the file name of the firmware file for executing the network connection operation using the IPv6 migration technology are stored in advance Do.

  In the IPv6 network 41a, as information for identifying each IPv6 network 500, prefix (Prefix) information (upper 64 bits) of an IPv6 address is set and registered. Further, in the firmware file 41d, the file name of each piece of firmware information registered in the firmware management table 43 of the storage device 4A is set and registered. For example, in the case of the firmware file 41d of the first line, “DSlite_1_0_6. “bin” is set, and as indicated by the extension “bin”, it can be understood that firmware information is registered in binary format in the firmware management table 43 as in the case of the configuration file (Config file).

  When receiving the acquisition request of the IPv4 connection setting information and the firmware information by the IPv6 migration technology related to the HGW apparatus 100A from the HGW apparatus 100A by the operation of step A12, the setting management server 200A determines the concrete of step A3 in the first embodiment. As in the case of the description in the example, the IPv6 migration technology specifying unit 31 confirms the IPv6 address of the HGW apparatus 100A that is the request source of the acquisition request.

  Then, the setting management server 200A refers to the IPv6 network 41a column of the IPv6 migration technology management table 41A of the storage device 4A based on the prefix (Prefix) information of the IPv6 address of the HGW apparatus 100A of the request source of the acquisition request. The connection setting information necessary for the request source HGW apparatus 100A to identify the IPv6 migration technology that can be used in the IPv6 network 500 and to connect to the IPv4 network 600 by the specified IPv6 migration technology The file names of both the included Config file (configuration file) and the firmware file that makes the IPv6 migration technology available are specified (Step A13).

  In this specific example, as in the case of the description of the specific example in the first embodiment, the IPv6 address of the HGW apparatus 100A is, for example, "2001: 1234 :: 1234: 5678: 90ab: cdef". Suppose. The prefix (Prefix) information (upper 64 bits) of the IPv6 address of the HGW apparatus 100A is "2001: 1234 :: / 64", and the first line of the IPv6 network 41a column of the IPv6 migration technology management table 41A of FIG. It corresponds to "2001: 1234 :: / 64" in the eye.

  Therefore, by referring to the first line of the IPv6 migration technology management table 41A of FIG. 7, “DS-Lite” is specified as an available IPv6 migration technology, and connection is performed using the IPv6 migration technology. Specify “Config101.bin” as a Config file (setting file) that contains the necessary connection setting information, and “DSLite_1_0_6.bin” as a firmware file that enables the use of the IPv6 migration technology. become.

  That is, the IPv6 migration technology that can be used by the HGW apparatus 100A having the IPv6 address "2001: 1234 :: 1234: 5678: 90ab: cdef" in the IPv6 network 500 is "DS-Lite" in the IPv6 migration 41b column. The file name of the Config file (setting file) that contains the connection setting information necessary for connecting to the IPv4 network 600 using the IPv6 migration technology "DS-Lite" is "Config101 in Config file 41c". The file name of the firmware file for connecting to the IPv4 network 600 by the IPv6 migration technology "DS-Lite" is specified as "DSLite_1_0_6.bin" in the firmware file 41d column.

  Next, the setting management server 200A sets detailed information on the Config file (setting file) and the firmware file specified by the IPv6 migration technology specifying unit 31 in step A13, that is, IPv4 connection setting information based on the specified IPv6 migration technology and the specified IPv6. The firmware / IPv4 connection setting notifying means 32A refers to the IPv6 migration connection setting management table 42 and the firmware management table 43 of the storage device 4A to obtain firmware information that enables the migration technology to be used.

  Then, the obtained IPv4 connection setting information and the firmware information are notified to the HGW apparatus 100A by the firmware / IPv4 connection setting notifying means 32A as the IPv4 connection setting information and the firmware information by the IPv6 migration technology related to the requester HGW apparatus 100A. (Step A14).

  In this specific example, since the file name of the Config file (setting file) specified in step A13 is “Config101.bin”, the setting management server 200A is a Config file of the IPv6 migration connection setting management table 42 of FIG. This corresponds to the file name in the first line of column 42a.

  Therefore, with reference to the first line of the IPv6 migration connection setting management table 42 of FIG. 4, “101” in the Config-ID 42 b column is acquired for the Config file “Config 101. bin”, and “dslite” in the provisioning server 42 d column. Get ".server1.com". Further, since the file name of the firmware file identified in step A13 is “DSLite_1_0_6.bin”, the setting management server 200A selects “DSLite_1_0_6” from among the firmware information registered in the firmware management table 43 of the storage device 4A. Get '.bin' firmware information.

  After that, the setting management server 200A can use the IPv6 migration technology “DS-Lite” available in the HGW apparatus 100A of the acquisition request source, the identifier “101” of the IPv4 connection setting information indicating the Config file (setting file), IPv4 connection setting information and firmware information based on the IPv6 migration technology for the HGW apparatus 100A by the firmware / IPv4 connection setting notifying means 32A for each information of the URL information "dslite.server1.com" and the corresponding firmware information "DSLite_1_0_6.bin" , And notifies the HGW apparatus 100A of the acquisition request source.

  As a result, when the notification of the IPv4 connection setting information and firmware information regarding the HGW apparatus 100A is received from the setting management server 200A, the HGW apparatus 100A receives the received IPv4 connection setting information and firmware information regarding the HGW apparatus 100A as firmware / It is stored in the IPv6 migration connection setting information management table 21A of the storage device 2A by the IPv4 connection setting acquisition means 13A (step A15).

  In this specific example, as IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100A, available IPv6 migration technology “DS-Lite” and IPv4 connection setting information related to Config file (setting file) “Config101.bin” Information of the identifier “101”, the URL information of the provisioning server “dslite.server1.com”, and the firmware information “DSLite_1_0_6.bin” is stored in the IPv6 migration connection setting information management table 21A of the storage device 2A.

  After that, the HGW apparatus 100A updates the firmware of the HGW apparatus 100A with the firmware information acquired from the setting management server 200A with reference to the IPv6 migration connection setting information management table 21A by the firmware update unit 14 (step A16) ). Then, the HGW apparatus 100A refers to the IPv4 connection setting information stored in the IPv6 migration connection setting information management table 21A, changes the connection setting, and utilizes the specified IPv6 migration technology to set the IPv6 network 500. The connection to the IPv4 network 600 is established, and the connection is made with, for example, the IPv4 apparatus 650 connected to the IPv4 network 600 as an IPv4 connection destination (step A17).

  That is, in this specific example, the HGW apparatus 100A connects to the URL information “dslite.server1.com” of the provisioning server installed on the IPv6 network 500 as in the specific example of the first embodiment. IPv6 network by acquiring information required for connection to the IPv4 network 600 by the IPv6 migration technology “DS-Lite” (ie, the IPv6 address of the PE router 550 dedicated to “DS-Lite”, etc.) A connection to 600 can be established.

  In this specific example, although the firmware written in advance in the HGW apparatus 100A can be connected to the IPv6 network 500, the IPv6 migration technology “DS-Lite” specified in step A3 can be used. It is assumed to use generic firmware that does not support communication.

  Therefore, in this specific example, the HGW apparatus 100A is connected to the IPv6 network 500, and the configuration management server 200A supports the firmware corresponding to the IPv6 migration technology "DS-Lite" supported in the connected network line. An operation of downloading and rewriting the firmware of the HGW apparatus 100A is performed. Thus, the HGW apparatus 100A can enable connection and automatic configuration to the IPv4 network 600 using the IPv6 migration technology "DS-Lite".

  By performing the above-described operation, as in the case of the first embodiment, each HGW apparatus 100A side is not aware of whether or not the support of the IPv6 migration technology is supported or the specification change. By ensuring maintenance, it is possible to flexibly adapt to the introduction of new IPv6 migration technology and configuration change of IPv6 migration.

  That is, in the second embodiment, for each IPv6 network 500, an available IPv6 migration technology and a Config file (setting file) including connection setting information necessary for performing connection are registered in advance. Since the existing configuration management server 200A is disposed on the IPv6 network 500, if the HGW apparatus 100A can connect to the IPv6 network line, the setting change to the IPv6 migration function supported by the IPv6 network line In addition to the above, in the second embodiment, it is possible to acquire the installation / update of the firmware from the corresponding setting management server 200A.

  Thus, the setting change related to the connection setting information for the installed HGW apparatus 100A, and the setting for the connection setting information not only for the firmware update but also for the HGW apparatus 100A installed for the first time, and the introduction of the firmware Can be implemented generically.

Third Embodiment
Next, a third embodiment of the present invention will be described in detail with reference to the drawings. In the third embodiment, unlike in the first and second embodiments, for example, IP over Ethernet (hereinafter, abbreviated as 'IPoE') or Point-to-Point Protocol over Ethernet (hereinafter, ''). Even in the case of connecting to the IPv4 network 600 using technology other than IPv6 migration technology such as PPPoE 'or the like, or in the case of connecting to the IPv4 network 600 using IPv6 migration technology, IPv4 in the HTV device A case where connection setting information and firmware can be automatically set will be described.

(Example of Configuration of Third Embodiment)
First, an example of the internal configuration of the HGW apparatus, the route information management server, and the provisioning server according to the third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a configuration diagram showing an example of an internal configuration of the HGW apparatus, the route information management server, and the provisioning server in the IPv6 network system according to the third embodiment of the present invention.

  The system configuration of the IPv6 network system in the third embodiment is not shown because it is the same as the system configuration of the IP network system according to the first embodiment shown in FIG. 1A. In the third embodiment, the HGW apparatus 100B shown in FIG. 8 is disposed instead of the HGW apparatus 100 in FIG. 1A, and the setting management server 200 in FIG. 1A or the setting management server in FIG. Aside from 200A, the route information management server 300 and the provisioning server 400 shown in FIG. 8 are arranged on the IPv6 network 500 and configured.

  The HGW device 100B shown in FIG. 8 internally includes at least a data processing device 1B and a storage device 2B. The data processing device 1B includes an IPv6 connection unit 11, an IPv4 connection setting acquisition unit 13B, a route information acquisition unit 15, and The storage device 2B internally includes at least a path information management table 22, an operator information management table 23, and an IPv4 connection setting management table 24.

  The IPv6 connection unit 11 obtains the same function as the IPv6 connection unit 11 in the HGW apparatus 100 of FIG. 1 (that is, acquires information for connecting to the IPv6 network 500 from a network device such as an upper IPv6 router), and the HGW apparatus 100B. And the IPv6 network 500).

  Also, the IPv4 connection setting acquisition unit 13B refers to the provider information management table 23 and the IPv4 connection setting management table 24 stored in the storage device 2B, and from the provisioning server 400 on the IPv6 network 500, the HGW apparatus 100B. Has a function to acquire IPv4 connection setting information related to. Further, the route information acquisition means 15 has a function of requesting the route information management server 300 on the IPv6 network 500 from the HGW device 100 B to obtain network information on the IPv6 network 500. Also, the IPv4 connection method automatic determination unit 16 has a function of automatically determining the IPv4 connection method of the HGW apparatus 100B with reference to the path information management table 22 and the provider information management table 23 of the storage device 2B. ing.

  Further, in the path information management table 22 stored in the storage device 2B, network information related to the IPv6 network that the HGW apparatus 100B has acquired from the path information management server 300 on the IPv6 network 500 is stored. Further, in the business entity information management table 23, related information regarding the business operators of each IPv6 network and the IPv4 connection setting is stored. Further, the IPv4 connection setting management table 24 stores IPv4 connection setting information according to each IPv4 connection method in the HGW apparatus 100B.

  Next, the route information management server 300 on the IPv6 network 500 shown in FIG. 8 internally includes at least the data processing device 5 and the storage device 6. The data processing device 5 internally includes at least a path information distribution unit 51, and the storage device 6 internally includes at least a path information management table 61.

  The route information distribution unit 51 acquires the acquired network information of the IPv6 network 500 by referring to the path information management table 61 of the storage device 6 when there is a request for acquiring network information related to the IPv6 network 500 from the HGW device 100B. It has a function of distributing to the HGW apparatus 100B of the request source.

  Further, in the path information management table 61 stored in the storage device 6, network information of each IPv6 network 500 is stored.

  Next, the provisioning server 400 on the IPv6 network 500 shown in FIG. 8 internally includes at least the data processing device 7 and the storage device 8. The data processing device 7 internally includes at least an IPv4 connection setting notifying unit 71, and the storage device 8 internally includes at least an IPv4 connection setting management table 81.

  The IPv4 connection setting notification means 71 refers to the IPv4 connection setting management table 81 of the storage device 8 when the HGW device 100B makes an acquisition request for IPv4 connection setting information, and obtains the acquired IPv4 connection setting information from the request source Distribution function to the HGW device 100B.

  Further, in the IPv4 connection setting management table 81 stored in the storage device 8, IPv4 connection setting information by each IPv4 connection method that can be implemented in the HGW apparatus 100B is stored.

(Description of Specific Example Regarding Operation of Third Embodiment)
Next, operations of the HGW apparatus 100B, the route information management server 300, and the provisioning server 400 in the network system shown in FIG. 8 according to the third embodiment of the present invention will be described using specific examples with reference to FIGS. Will be described in detail. In the third embodiment, as a premise, the HGW apparatus 100B is in the business operator information management table 23, the path information management server 300 is in the path information management table 61, and the provisioning server 400 is in IPv4. It is assumed that information required in each of the connection setting management table 81 is registered in advance.

  First, operations of the HGW device 100B, the route information management server 300, and the provisioning server 400 will be described using the flowchart of FIG. FIG. 9 is a flow chart for explaining an example of the operation of the HGW device 100B, the route information management server 300 and the provisioning server 400 shown in FIG. 8 as the third embodiment of the present invention. In the flowchart of FIG. 9, the HGW apparatus 100B first detects the link from the upper IPv6 router by the IPv6 connection unit 11 after detecting the link-up with the upper network, as in step A1 of FIG. 2 in the first embodiment. And information required for connection with the IPv6 network 500, such as DNS server address, etc., and establish a connection to the IPv6 network 500 (step A21).

  After acquiring the IPv6 address and the DNS server address and establishing the connection to the IPv6 network 500, next, the HGW apparatus 100B connects to the route information management server 300 on the IPv6 network 500 and obtains the route information acquisition unit 15 Thus, the route information management server 300 is requested to obtain route information on the IPv6 network 500 (step A22).

  In this specific example, the HGW device 100B stores, in advance, URL information of the route information management server 300 as in the case of the setting management server 200 of the specific example shown in the first embodiment. After establishing the connection to the IPv6 network 500, the HGW device 100B uses the HTTP or HTTPS protocol for the URL of the route information management server 300 on the IPv6 network 500 to execute the IPv6 by the route information acquisition unit 15. It is assumed that the acquisition request of the route information regarding the network 500 is made. Furthermore, in this specific example, a series of communication between the HGW device 100B and the path information management server 300 and the provisioning server 400, which is performed not only in step A22 but in each step up to the subsequent step A26, is HTTP. Or it shall be performed by IPv6 communication by the protocol of HTTPS.

  When the route information management server 300 receives the route information acquisition request for the IPv6 network 500 from the HGW device 100B, the route information management server 300 refers to the route information management table 61 of the storage device 6 by the route information distribution unit 51 and relates to the IPv6 network 500. The route information is taken out and distributed to the HGW apparatus 100B of the acquisition request source (step A23). The HGW apparatus 100B having received the route information on the IPv6 network 500 distributed from the route information management server 300 stores the route information on the IPv6 network 500 in the route information management table 22 of the storage device 2B by the route information acquisition unit 15. Do.

  After that, the HGW apparatus 100B specifies the IPv4 connection method to connect to the IPv4 network 600 by referring to the route information management table 22 and the provider information management table 23 by the IPv4 connection method automatic determination means 16 (step A24). . That is, with reference to the route information management table 22 illustrated as an image in FIG. 10 and the provider information management table 23 illustrated as an image in FIG. 11, from the IPv6 address of the HGW apparatus 100B, the operator of the IPv6 network 500, use Identify the IPv4 connection method to be used.

  Here, FIG. 10 is a table showing a specific image of the registered contents of the route information management table 22 stored in the storage device 2B of the HGW device 100B of FIG. 8, and FIG. 11 is a HGW device of FIG. It is a table which shows the concrete image of the registration contents of business information management table 23 memorized by storage device 2B of 100B.

  The route information management table 22 shown in FIG. 10 is composed of a Type 22a column and an IPv6 network 22b column, stores route information related to the IPv6 network 500 acquired from the route information management server 300, and displays it in the IPv6 network 500 shown in the IPv6 network 22b. , And the type shown in the column Type 22a are stored in association with each other. For example, in the IPv6 network 500 having the IP address "2001: 1234 :: / 64" in the first line, the IPv6 network 22b has prefix (Prefix) information for the IP address, and the IPv6 network with the type "111" indicated by the Type 22a field. It shows that it is 500.

  Further, as described above, the business entity information management table 23 shown in FIG. 11 is a table in which the registered contents are set in advance in the HGW apparatus 100B, and the Type 23a column, the business operator 23b column, the IPv4 connection method 23c column, and , And information on an IPv4 connection method including an IPv6 migration technology that can be used to connect to the IPv4 network 600 and information on the provider that provides the network for each type of IPv6 network 500, which is configured to include the provisioning server 23 d column. , And stores information on a provisioning server 400 capable of acquiring IPv4 connection setting information.

  For example, if the provider of the IPv6 network 500 of the type "111" in the Type 23a column shown in the first line is "-(other networks)" shown in the provider 23b column, connection to the IPv4 network 600 is made. It is stored that the available IPv4 connection method is not "IPv6 migration technology" but "PPPoE" indicated by the IPv4 connection method 23c column in the first line.

  In addition, if the provider of the IPv6 network 500 of the type “411” in the Type 23a column shown in the sixth line is “Operator A” shown in the provider 23b column, the “Operator A” The IPv6 migration technology for connecting to the IPv4 network 600 in the circuit of the IPv6 network 500 is "DS-Lite" in the IPv4 connection method 23c column, and the URL information of the provisioning server 400 for acquiring IPv4 connection setting information is the provisioning server I remember that it is "dslite.server1.com" in the 23d column.

  In this specific example, it is assumed that the IPv6 address of the HGW device 100B is, for example, “240 c: 1234 :: 1234: 5678: 90 ab: cdef”. In such a case, in step A24, the HGW apparatus 100B refers to the route information management table 22 in FIG. 10 using the prefix (Prefix) information "240c: 1234 :: / 64" of the IPv6 address of the HGW apparatus 100B. Then, the HGW apparatus 100B uses the IPv6 network 500 of the type "413" indicated by the Type 22a column in the eighth line, where the IPv6 network 22b column has the same content "240c: 1234 :: / 64". Identify as a network.

  Furthermore, HGW apparatus 100B refers to the carrier information management table 23 of FIG. 11 for the identified type “413” of the IPv6 network 500, and the Type 23a column in the eighth row corresponds to the type “413”. The provider providing the IPv6 network 500 of the type “413” is the “provider C” indicated by the provider 23b column in the eighth row, and for connecting to the IPv4 network 600. IPv6 migration technology that can be used is “MAP-E” indicated by the IPv4 connection method 23c column in the eighth row, and further, the URL of the provisioning server 400 is indicated by the provisioning server 23 d in the eighth row. Identify "MAP-rule.server1.com".

  When the operation of step A24 ends, next, the HGW apparatus 100B transmits the IPv4 connection setting information to the provisioning server 400 whose URL on the IPv6 network 500 specified in step A24 is “MAP-rule.server1.com”. An acquisition request is made (step A25).

  In this specific example, as described above, since "MAP-E" is used as an IPv6 migration technology that can be used to connect to the IPv4 network 600, the connection by the IPv6 migration technology "MAP-E" is used. In order to do this, a request for acquiring IPv4 connection setting information is issued to the MAP-E provisioning server 400 whose URL is “MAP-rule.server1.com” located on the IPv6 network 500.

  The provisioning server 400 for MAP-E that has received the acquisition request from the HGW device 100B refers to the IPv4 connection setting management table 81 of the storage device 8 by the IPv4 connection setting notification means 71, and the requested IPv4 connection setting information And distributes the extracted IPv4 connection setting information to the acquisition request source HGW apparatus 100B (step A26). The HGW apparatus 100B of the acquisition request source acquires the IPv4 connection setting information distributed from the provisioning server 400 by the IPv4 connection setting acquisition unit 13B, and stores the acquired information in the IPv4 connection setting management table 24.

  After that, the HGW apparatus 100B refers to the IPv4 connection setting information stored in the IPv4 connection setting management table 24 and establishes a connection to the IPv4 network 600 using the IPv6 migration technology "MAP-E" to perform the IPv4 connection. The connection is made with, for example, the IPv4 device 650 connected to the IPv4 network 600 (step A27). That is, in this specific example, the HGW apparatus 100B connects to the provisioning server 400 whose URL on the IPv6 network 500 is "MAP-rule.server1.com", and the IPv4 network 600 using the IPv6 migration technology "MAP-E" is connected. A connection to the IPv4 network 600 can be established by obtaining the information necessary for connection to (ie, the IPv6 address of the PE router 550 dedicated to “MAP-E”, etc.).

  In this specific example, although the case where the connection method by the IPv6 migration technology is selected in step A24 is described, for example, the IPv4 network 600 is connected using a technology other than the IPv6 migration technology such as IPoE or PPPoE. Even in this case, it is possible to obtain the IPv4 connection setting information from the corresponding provisioning server 400 or the like and perform the connection to the IPv4 network 600 as needed.

  Also, in this specific example, the HGW device 100B dynamically determines the IPv6 network 500 of the operator that the HGW device 100B uses by acquiring the route information on the IPv6 network 500 from the route information management server 300. Therefore, even when the IPv6 address of the provider is added or changed, it is possible to cope without changing the firmware on the HGW apparatus 100B side.

Fourth Embodiment
Next, a fourth embodiment of the present invention will be described in detail with reference to the drawings. In the fourth embodiment, for example, as a provisioning server used by the HGW apparatus, a provisioning server that distributes IPv4 connection setting information in a data format not supported by the HGW apparatus is newly disposed on the IPv6 network. Case is explained.

(Example of Configuration of Fourth Embodiment)
First, an example of the internal configuration of the HGW apparatus, the setting management server, and the provisioning server according to the fourth embodiment of the present invention will be described with reference to FIG. FIG. 12 is a configuration diagram showing an example of an internal configuration of the HGW apparatus, the setting management server, and the provisioning server in the IPv6 network system according to the fourth embodiment of the present invention.

  The system configuration of the IPv6 network system in the fourth embodiment is not shown because it is the same as the system configuration of the IP network system according to the first embodiment shown in FIG. In the fourth embodiment, the HGW apparatus 100C shown in FIG. 8 is disposed instead of the HGW apparatus 100 in FIG. 1A, and the setting management server 200 in FIG. 1A or the setting management server in FIG. A configuration management server 200C shown in FIG. 8 is disposed separately from 200A, and a provisioning server 400C is disposed separately from the provisioning server 400 in FIG. Here, it is assumed that the data format of the information distributed by the provisioning server 400C is information of a data format that the HGW apparatus 100C does not support.

  The HGW device 100C shown in FIG. 12 internally includes at least a data processing device 1C and a storage device 2C. The data processing device 1C includes an IPv6 connection unit 11, an IPv4 connection setting acquisition unit 13C, an IPv6 migration setting request unit 17, The storage device 2C internally includes at least an IPv6 migration connection setting information management table 21C.

  The IPv6 connection unit 11 obtains the same function as the IPv6 connection unit 11 in the HGW apparatus 100 of FIG. 1 (that is, acquires information for connecting to the IPv6 network 500 from a network device such as an upper IPv6 router), and the HGW apparatus 100C. And the IPv6 network 500).

  Also, the IPv4 connection setting acquisition unit 13C refers to the IPv6 migration connection setting information management table 21C stored in the storage device 2C, and from the provisioning server 400C on the IPv6 network 500 via the setting management server 200C. It has a function of acquiring the IPv4 connection setting information of the HGW device 100C and storing it in the storage area of the IPv6 migration connection setting information management table 21C of the storage device 2C.

  Further, the IPv6 migration setting request means 17 has almost the same function as the IPv4 connection setting request means 12 in the HGW apparatus 100 of FIG. 1, and the HGW apparatus with respect to the setting management server 200C on the IPv6 network 500. It has a function to request acquisition of IPv4 connection setting information by the IPv6 migration technology for 100C. Also, the IPv6 migration setting acquisition unit 18 acquires the IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus 100C acquired from the setting management server 200C by the IPv6 migration setting request unit 17, and sets the IPv6 migration connection of the storage unit 2C. It has a function to save in the information management table 21C.

  Also, in the IPv6 migration connection setting information management table 21C stored in the storage device 2C, the same information as the information stored in the IPv6 migration connection setting information management table 21C in the HGW apparatus 100 of FIG. The HGW apparatus 100C stores connection setting information for connecting to the IPv4 network 600 via the IPv6 network 500 using the IPv6 migration technology.

  Next, a setting management server 200C on the IPv6 network 500 shown in FIG. 12 internally includes at least a data processing device 3C and a storage device 4C. The data processing apparatus 3C internally includes at least an IPv6 migration technology specifying unit 31, an IPv6 migration setting notifying unit 32B, an IPv4 connection setting notifying unit 32C, a connection setting proxy acquiring unit 33, and a data format converting unit 34. The storage device 4C internally includes at least an IPv6 migration technology management table 41C, an IPv6 migration connection setting management table 42, and an IPv4 connection setting management table 44.

  The IPv6 migration technology specifying unit 31 and the IPv6 migration setting notifying unit 32B have substantially the same functions as the IPv6 migration technology specifying unit 31 and the IPv4 connection setting notifying unit 32 in the setting management server 200 of FIG. Has a function of specifying the IPv6 migration technology available in the line to which the request source HGW apparatus 100C is connected with reference to the IPv6 migration technology management table 41C of the storage device 4C, and the IPv6 migration setting notification means 32B The IPv4 connection setting information based on the IPv6 migration technology related to the HGW device 100C is acquired with reference to the IPv6 migration connection setting management table 42 of the storage device 4C. And it has a function) to notify to the HGW apparatus 100C.

  In addition, the connection setting proxy acquisition unit 33 receives the IPv4 connection setting information required for the IPv4 connection setting in the HGW apparatus 100C requested by the IPv4 connection setting acquisition unit 13C of the HGW apparatus 100C from the provisioning server 400C on the IPv6 network 500. It has a function of acquiring and temporarily storing in the IPv4 connection setting management table 44 of the storage device 4C.

  Further, the data format conversion unit 34 converts the IPv4 connection setting information acquired by the connection setting proxy acquisition unit 33 and temporarily stored in the IPv4 connection setting management table 44 of the storage device 4C into a data format usable by the HGW apparatus 100C. Of the storage device 4C and stores the result in the IPv4 connection setting management table 44 of the storage device 4C.

  In addition, the IPv4 connection setting notifying means 32C converts the data format of the HGW apparatus 100C requested for acquisition from the IPv4 connection setting acquiring means 13C of the HGW apparatus 100C by the data format conversion means 34 and stores it. It has a function of acquiring from the IPv4 connection setting management table 44 of the storage device 4C corrected and returning it.

  In addition, in the IPv6 migration technology management table 41C stored in the storage device 4C, the model code of each HGW apparatus 100C is further added to the IPv6 migration technology management table 41 of the HGW apparatus 100 of FIG. It stores information for specifying the IPv6 migration technology that can be used by the HGW apparatus 100C.

  Also, in the IPv6 migration connection setting management table 42, the same information as the information stored in the IPv6 migration connection setting management table 42 of the HGW apparatus 100 of FIG. 1 (that is, an IPv4 network by the IPv6 migration technology for each HGW apparatus 100C) Information necessary for connection is stored.

  Further, the IPv4 connection setting management table 44 stores parameters acquired by the connection setting proxy acquisition unit 33 and information related to the data format of the IPv4 connection setting information of the provisioning server 400C and the HGW apparatus 100C, and the connection setting proxy acquisition unit 33. The data format conversion unit 34 stores the result of conversion of the IPv4 connection setting information related to the HGW device 100C acquired by the above.

  Next, the provisioning server 400C on the IPv6 network 500 shown in FIG. 12 has the same configuration as the provisioning server 400 of FIG. 8 shown as the third embodiment, and internally has the data processing device 7C and the storage device 8C. At least. The data processing apparatus 7C internally includes at least an IPv4 connection setting notification unit 71, and the storage apparatus 8C internally includes at least an IPv4 connection setting management table 81C.

  Then, the IPv4 connection setting notification unit 71 manages the IPv4 connection setting of the storage device 8C when the connection setting proxy acquisition unit 33 of the setting management server 200C requests acquisition of the IPv4 connection setting information related to the designated HGW apparatus 100C. It has a function of notifying the setting management server 200C of the acquisition request source of the acquired IPv4 connection setting information with reference to the table 81C. Further, in the IPv4 connection setting management table 81C stored in the storage device 8C, the IPv4 related to the HGW apparatus 100C notified to the setting management server 200C of the acquisition request source via the connection setting proxy acquisition means 33 of the setting management server 200C. It stores connection setting information. Here, it is assumed that the IPv4 connection setting information is configured in the form of a data format not supported by the HGW apparatus 100C.

(Description of Specific Example Regarding Operation of Fourth Embodiment)
Next, operations of the HGW apparatus 100C, the setting management server 200C, and the provisioning server 400C in the network system shown in FIG. 12 according to the fourth embodiment of the present invention will be described using specific examples with reference to FIGS. It will be described in detail. In the fourth embodiment, as a premise, the setting management server 200C includes the IPv6 migration technology management table 41C, the IPv6 migration connection setting management table 42, and the IPv4 connection setting management table 44 (setting areas other than the parameter area). Further, it is assumed that the provisioning server 400C has registered in advance the information required in each of the IPv4 connection setting management table 81C.

  First, operations of the HGW device 100C, the setting management server 200C, and the provisioning server 400C will be described using the flowchart of FIG. FIG. 13 is a flow chart for explaining an example of the operation of the HGW apparatus 100C, the setting management server 200C and the provisioning server 400C shown in FIG. 8 as the fourth embodiment of the present invention. In the flowchart of FIG. 13, the HGW apparatus 100C first detects the link from the upper IPv6 router by the IPv6 connection unit 11 after detecting the link-up with the upper network, as in step A1 of FIG. 2 in the first embodiment. , Etc. are acquired, and a connection to the IPv6 network 500 is established (step A31).

  After acquiring the IPv6 address and the DNS server address and establishing the connection to the IPv6 network 500, next, the HGW apparatus 100C is executed on the IPv6 network 500 as in the case of step A2 of FIG. 2 in the first embodiment. The setting management server 200C is connected to the setting management server 200C, and the IPv6 migration setting request unit 17 requests the setting management server 200C to acquire IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100C (step A32).

  In this specific example, the HGW apparatus 100C stores the information of the URL of the setting management server 200C in advance, as in the specific example shown in the first embodiment. After establishing a connection to the IPv6 network 500, the HGW device 100C uses the HTTP or HTTPS protocol for the URL of the setting management server 200C on the IPv6 network 500, and uses IPv6 migration setting request means 17 for Pv6. It is assumed that the acquisition request of IPv4 connection setting information by migration technology is made.

  Furthermore, in this specific example, a series of communication between the HGW apparatus 100C and the setting management server 200C and the provisioning server 400C, which is performed in each step up to the subsequent step A39 as well as the step A32, is HTTP or It shall be performed by IPv6 communication by the protocol of HTTPS. In this specific example, the model code of the HGW apparatus 100C is included as a parameter at the time of acquisition request by the IPv6 migration setting request means 17 in step A32.

  Further, in this specific example, as described above, the IPv6 migration technology management table 41C of the setting management server 200C and the IPv6 migration connection setting management table 42 are exemplified in the tables of FIG. 14 and FIG. 4, respectively. Information is registered in advance. FIG. 14 is a table showing a specific image of the registered contents of the IPv6 migration technology management table 41C stored in the storage device 4C of the setting management server 200C of FIG. 4 is the IPv6 migration connection setting management table 42 exemplified in the first embodiment, and also in this specific example, the Config file 42a, the Config-ID 42b, the PE router 42c, and the provisioning server 42d illustrated in FIG. 4. , Etc. are registered in advance as specific registration contents.

  In the IPv6 migration technology management table 41C shown in FIG. 14, an IPv6 network 41a column, an IPv6 migration 41b column, and a Config file 41c column similar to the IPv6 migration technology management table 41 shown in FIG. 3 as a specific example in the first embodiment. Information on the IPv6 network, IPv6 migration, and configuration file (Config file) is registered in advance in each of the above, and information on the model code of the HGW apparatus 100C is additionally registered in the model code 41e column.

  In other words, in the IPv6 migration technology management table 41C, for each IPv6 network 500, information related to the IPv6 migration technology that the HGW apparatus 100C of the request source can use in each IPv6 network 500, connection to the IPv4 network 600 by the IPv6 migration technology It is assumed that information on the file name of the configuration file (Config file) including necessary connection setting information and information on the model code of the HGW apparatus 100C using the IPv6 migration technology are stored in advance. In the IPv6 network 41a, as information for identifying each IPv6 network 500, prefix (Prefix) information (upper 64 bits) of an IPv6 address is set and registered.

  When receiving the acquisition request of the IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100C from the HGW apparatus 100C by the operation of step A32, the setting management server 200C explains the specific example of step A3 in the first embodiment. In the same manner as in the above case, the IPv6 migration technology specifying means 31 confirms the IPv6 address of the HGW apparatus 100C that is the request source of the acquisition request.

  Then, the setting management server 200C stores information based on the prefix (Prefix) information of the IPv6 address of the HGW apparatus 100C of the request source of the acquisition request and the model code of the HGW apparatus 100C of the request source included in the acquisition request. The IPv4 migration technology management table 41C of the device 4C is referred to, and the IPv6 migration technology by which the request source HGW apparatus 100C can use in the IPv6 network 500 is identified and the IPv4 network 600 by the identified IPv6 migration technology The file name of the Config file (setting file) including the connection setting information necessary for connection to the network is specified (step A33).

  In this specific example, the IPv6 address of the HGW apparatus 100C of the acquisition request source is, for example, "2001: 90ab :: 1234: 5678: 90ab: cdef", and the model code is, for example, "XY2000H". It is assumed that The prefix (Prefix) information (upper 64 bits) of the IPv6 address of the HGW device 100C is “2001: 90ab :: / 64” and the model code is “XY2000H”, so the IPv6 migration of FIG. 14 is performed. The IPv6 network 41a column in the fourth line of the technology management table 41C corresponds to "2001: 1234 :: / 64", and the model code 41e column corresponds to "XY2000H".

  Therefore, by referring to the fourth line of the IPv6 migration technology management table 41C of FIG. 14, the available IPv6 migration technology is identified as "DS-Lite", and the IPv6 migration technology "DS-Lite" is used. "Config104.bin" is specified as a Config file (setting file) that includes connection setting information necessary for performing connection.

  That is, the IPv6 migration technology that can be used by the HGW device 100C having the IPv6 address “2001: 90ab :: 1234: 5678: 90ab: cdef” and the model code “XY2000H” in the IPv6 network 500 is shown in FIG. It is "DS-Lite" on the fourth line of the IPv6 migration 41b column of the IPv6 migration technology management table 41C, and the connection setting information necessary for connecting to the IPv4 network 600 by the IPv6 migration technology "DS-Lite" is The file name of the included Config file (setting file) is specified as "Config104.bin" on the fourth line of the Config file 41c column of the IPv6 migration technology management table 41C of FIG.

  Next, the setting management server 200C performs detailed information on the Config file (setting file) specified by the IPv6 migration technology specifying unit 31 in step A33, that is, IPv6 migration for acquiring IPv4 connection setting information by the specified IPv6 migration technology. The setting information is acquired by the IPv6 migration setting notifying means 32B with reference to the IPv6 migration connection setting management table 42 of the storage device 4C. The IPv6 migration setting notifying means 32B notifies the HGW apparatus 100C of the acquired IPv6 migration setting information as IPv6 migration setting information for acquiring IPv4 connection setting information based on the IPv6 migration technology related to the HGW apparatus 100C of the request source. (Step A34).

  In this specific example, the file name of the Config file (setting file) specified in step A33 is “Config104.bin”, so the setting management server 200C is configured as the fourth one of the IPv6 migration connection setting management table 42 in FIG. Recognize that it corresponds to the file name of the line.

  Therefore, the configuration management server 200C refers to the fourth line of the IPv6 migration connection setting management table 42 of FIG. 4 and acquires “104” in the Config-ID 42b column with respect to the Config file “Config104.bin” to perform provisioning. Get "Hgw-Server.server.com/DS-Lite/config104/" of the server 42d column. Here, “Hgw-Server.server.com/DS-Lite/config104/” acquired as the URL of the provisioning server is the URL of the setting management server 200C itself.

  After that, the setting management server 200C can use the IPv6 migration technology “DS-Lite” available in the HGW apparatus 100C of the acquisition request source, the identifier “104” of the IPv4 connection setting information indicating the Config file (setting file), IPv6 migration setting information for acquiring URL information “Hgw-Server.server.com/DS-Lite/config104/” using IPv6 migration setting notification means 32B for IPv4 connection setting information by the IPv6 migration technology for the HGW apparatus 100C , And notifies the HGW apparatus 100C of the acquisition request source.

  As a result, as a response to the acquisition request by the IPv6 migration setting request means 17, the HGW device 100C causes the IPv6 migration setting acquisition means 18 to acquire IPv4 connection setting information related to the HGW device 100C from the setting management server 200C. When receiving the notification of the migration setting information, the HGW apparatus 100C migrates the received IPv6 migration setting information for acquiring the IPv4 connection setting information related to the HGW apparatus 100C by using the IPv6 migration setting acquiring unit 18 for the IPv6 migration of the storage apparatus 2C. It is stored in the connection setting information management table 21C.

  In this specific example, the IPv6 migration connection setting information management table 21C of the HGW apparatus 100C includes IPv6 migration technology as described above as IPv6 migration setting information for acquiring IPv4 connection setting information related to the HGW apparatus 100C. DS-Lite's Config file "Config104.bin", Config-ID "104", and provisioning server "Hgw-Server.server.com/DS-Lite/config104/" are saved in the IPv6 migration connection setting information management table 21C. It will be

  Here, the URL information "Hgw-Server.server.com/DS-Lite/config104/" of the provisioning server stored in the IPv6 migration connection setting information management table 21C of the HGW apparatus 100C is the specific example shown in FIG. Unlike the above case, as described above, the URL of the setting management server 200C itself of the acquisition request destination of the IPv6 migration setting information is specified. That is, unlike the specific example shown in FIG. 2, in this specific example, “Hgw-Server.server.com/DS-Lite/config104/”, which is the URL of the setting management server 200C itself, is specified as the provisioning server. The detailed information on the Config file “Config104.bin” for the HGW apparatus 100C is notified from the setting management server 200C.

  Next, the HGW apparatus 100C changes the setting of the IPv6 migration setting information acquired from the setting management server 200C in step A34, and the IPv4 connection setting acquiring unit 13C changes the IPv4 connection setting information based on the IPv6 migration technology for the HGW apparatus 100C. An acquisition request for IPv4 connection setting information is issued to the stored provisioning server 400C (step A35).

  Here, in the present specific example, the HGW apparatus 100C uses the URL information of the provisioning server 400C notified from the setting management server 200C in step A34 to “Hgw-Server.server.com/DS-Lite/ Although “Hgw-Server.server.com” of the URL information is connected to the config104 /, as described above, the URL of the setting management server 200C itself is designated, so the setting management server 200C is notified. The IPv4 connection setting acquisition unit 13C requests acquisition of IPv4 connection setting information. In this specific example, as described above, the access to the setting management server 200C by the IPv4 connection setting acquisition unit 13C that requests acquisition of the IPv4 connection setting information is performed on the URL of the setting management server 200C on the IPv6 network 500 as described above. Do using the HTTP or HTTPS protocol.

  In this specific example, when accessing the corresponding directory indicated by the “/ DS-Lite / config104 /” portion of the setting management server 200C in order to request acquisition of the IPv4 connection setting information, the setting management server 200C For example, it is assumed that, as a response, the IPv4 connection setting information described using a script language such as Common Gateway Interface (hereinafter referred to as 'CGI') is returned to the acquisition request source HGW apparatus 100C.

  When receiving the acquisition request of the IPv4 connection setting information related to the HGW apparatus 100C from the HGW apparatus 100C, the setting management server 200C refers to the IPv4 connection setting management table 44 of the storage apparatus 4C, and the IPv4 connection related to the HGW apparatus 100C. The provisioning server 400C storing the setting information is specified, and the connection setting proxy acquiring unit 33 requests the provisioning server 400C to acquire the IPv4 connection setting information.

  In this specific example, as described above, the information for specifying the provisioning server 400C is registered in the IPv4 connection setting management table 44 in advance. FIG. 15 is a table showing a specific image of the registered contents of the IPv4 connection setting management table 44 stored in the storage device 4C of the setting management server 200C of FIG.

  As shown in FIG. 15, in the IPv4 connection setting management table 44, a server directory 44a other than the parameter area of the first parameter 44e, the second parameter 44f,..., A provisioning server 44b, a server data format 44c, a client data format 44d, Information on each column is registered in advance. The server directory 44a is information indicating the directory equivalent portion of the URL of the provisioning server acquired as detailed information on the Config file by the IPv6 migration setting notification means 32B, ie, in the provisioning server 42d of the IPv6 migration connection setting management table 42 of FIG. A directory equivalent portion of certain URL information is registered, and the provisioning server 44b registers the URL of the provisioning server 400C specified by the directory equivalent portion of the server directory 44a.

  In this specific example, the provisioning server “Hgw-Server.server.com/DS-Lite/config104/”, that is, the directory equivalent portion “DS-Lite / config104 /” of the configuration management server 200C is acquired as detailed information on the Config file. Because of this, the setting management server 200C refers to the server directory 44a column of the IPv4 connection setting management table 44, and detects “DS-Lite / config 104 /” on the first line. As a result, the setting management server 200C stores “dslite.server3.com” registered in the provisioning server 44b column of the first line of the IPv4 connection setting management table 44 with the IPv4 connection setting information regarding the HGW apparatus 100C. It is extracted as URL information of the provisioning server 400C, and a request for acquiring IPv4 connection setting information is issued to the provisioning server 400C using the HTTP or HTTPS protocol.

  As a result, IPv4 connection setting information related to the HGW apparatus 100C requested by the setting management server 200C is returned from the provisioning server 400C to the setting management server 200C as a response to the acquisition request of the IPv4 connection setting information. Here, the data format of the IPv4 connection setting information related to the returned HGW apparatus 100C is a data format not supported by the HGW apparatus 100C, and can not be used in the HGW apparatus 100C as it is.

  Therefore, the setting management server 200C acquires the IPv4 connection setting information on the HGW apparatus 100C returned as a response from the provisioning server 400C, and obtains the acquired IPv4 connection setting information on the HGW apparatus 100C (various types including information on PE router) The information (parameter information) is temporarily stored in the storage area in the IPv4 connection setting management table 44 (step A36).

  After that, the setting management server 200C refers to the IPv4 connection setting management table 44 by the data format conversion unit 34, and acquires it from the provisioning server 400C and temporarily saves it in the storage area in the IPv4 connection setting management table 44. The IPv4 connection setting information on 100C is converted into a data format that can be used by the HGW apparatus 100C (step A37).

  In this specific example, the provisioning server “Hgw-Server.server.com/DS-Lite/config104/” obtained as the detailed information on the Config file, that is, the directory equivalent portion “DS-Lite / config104 /” of the setting management server 200C is Referring to the first line of the IPv4 connection setting management table 44 of FIG. 15 registered in the server directory 44a column, “2 (CSV)” in the server data format 44c column and “1 ( The data format conversion unit 34 converts the data format by using “JSON”.

  As described above, the server data format 44c and the client data format 44d of the IPv4 connection setting management table 44 are registered in advance in a format corresponding to the setting contents of the server directory 44a and provisioning server 44b.

  Here, the data format of the IPv4 connection setting information related to the HGW apparatus 100C acquired from the provisioning server 400C and temporarily stored in the storage area in the IPv4 connection setting management table 44 is the server of the first line of the IPv4 connection setting management table 44. As shown in the data format 44c, it is assumed that "2 (CSV)" is used, and "2 (CSV)" is a data format of Character-Separated Values (hereinafter abbreviated as 'CSV') Suppose.

  The data format that can be used as IPv4 connection setting information acquired from the provisioning server 400C by the HGW apparatus 100C that is the acquisition request source is as shown in the client data format 44d column of the first line of the IPv4 connection setting management table 44. It is assumed that "1 (JSON)" is used, and "1 (JSON)" is assumed to be in a data format of JavaScript (registered trademark) Object Notation (hereinafter abbreviated as "JSON").

  The setting management server 200C causes the data format conversion means 34 to temporarily store the IPv4 connection setting information temporarily stored in the storage area in the IPv4 connection setting management table 44 according to "2 (CSV)" in the first line of the server data format 44c. Of each parameter to extract each parameter such as “aftraddr” (first parameter), “2001: 90ab :: 100” (second parameter),..., And the IPv4 connection setting management table 44 In the first parameter column 44e, the second parameter column 44f,...

  After that, the setting management server 200 C causes the data format conversion means 34 to execute “2 (CSV)” in the server data format 44 c column of the first line of the IPv4 connection setting management table 44 and “1 (1 In accordance with JSON), the IPv4 connection setting information temporarily stored in the IPv4 connection setting management table 44 is converted into a data format usable in the HGW apparatus 100C, and is stored again in the storage area in the IPv4 connection setting management table 44 (Step A37).

  In this specific example, the setting management server 200 C causes the data format conversion means 34 to execute the first line of the IPv4 connection setting management table 44 according to “1 (JSON)” of the client data format 44 d column of the IPv4 connection setting management table 44. All the "aftraddr" (first parameter), "2001: 90ab :: 100" (second parameter), ... stored in the first parameter 44e column, second parameter 44f column, ... The parameters are converted into data formats usable in the HGW apparatus 100C, and are stored again in the first parameter column 44e, the second parameter column 44f,... Of the first line of the IPv4 connection setting management table 44.

  After that, the setting management server 200C converts the IPv4 connection setting information converted in step A37 into a data format usable in the acquisition request source HGW apparatus 100C (the first parameter of the first line of the IPv4 connection setting management table 44) The information in each column of the 44e column, the second parameter 44f,... Is acquired by the IPv4 connection setting notifying means 32C, and notified to the HGW apparatus 100C (step A38).

  The HGW apparatus 100C, as a response from the setting management server 200C to the acquisition request by the IPv4 connection setting acquiring unit 13C, converts the IPv4 connection setting information converted into a data format usable in the HGW apparatus 100C into the IPv4 connection setting acquiring unit 13C. When received and acquired by the above, the IPv4 connection setting information is stored in the IPv6 migration connection setting information management table 21C of the storage device 2C (step A39). In this specific example, as described above, a series of communication between HGW apparatus 100C and setting management server 200C and between setting management server 200C and provisioning server 400C from step A32 to step A39 is performed. , As described above, it is performed by IPv6 communication according to the HTTP or HTTPS protocol.

  After that, the HGW apparatus 100C establishes a connection to the IPv4 network 600 by the IPv6 migration technology by referring to the IPv4 connection setting information acquired in step A39 and stored in the IPv6 migration connection setting information management table 21C. For example, an IPv4 device 650 connected to the IPv4 network 600 as an IPv4 connection destination is connected (step A40).

  That is, in this specific example, the HGW apparatus 100C sets the IPv4 connection setting information from the provisioning server 400C that distributes the information of the data format that the HGW apparatus 100C does not support into a format usable in the setting management server 200C. By converting data and acquiring information necessary for connection to the IPv4 network 600 by the IPv6 migration technology (ie, the IPv6 address of the PE router 550 dedicated to “DS-Lite”, etc.) Connection can be established.

  Thus, in the fourth embodiment, for example, as in the case where a new provisioning server 400C for distributing IPv4 connection setting information is introduced using a data format format not supported by the HGW apparatus 100C. Even in an environment where the HGW device 100C can not directly access the provisioning server 400C, the setting management server 200C relays the IPv4 connection setting information and converts it into a data format that can be used by the HGW device 100C. It becomes possible to obtain IPv4 connection setting information without changing the firmware and settings on the HGW apparatus 100C side.

  The configuration of the preferred embodiment of the present invention has been described above. However, it should be noted that such an embodiment is merely an example of the present invention and does not limit the present invention. It will be readily understood by those skilled in the art that various modifications and variations can be made according to a particular application without departing from the scope of the present invention.

1 data processing apparatus 1A data processing apparatus 1B data processing apparatus 1C data processing apparatus 2 storage apparatus 2A storage apparatus 2B storage apparatus 2C storage apparatus 3 data processing apparatus 3A data processing apparatus 3A data processing apparatus 3C storage apparatus 4A storage apparatus 4A storage apparatus 4C storage apparatus 5 Data processing unit 6 Storage unit 7 Data processing unit 7C Data processing unit 8 Storage unit 8C Storage unit 11 IPv6 connection means 12 IPv4 connection setting request means 12A Firmware / IPv4 connection setting request means 13 IPv4 connection setting acquisition means 13A Firmware / IPv4 connection setting Acquisition means 13B IPv4 connection setting acquisition means 13C IPv4 connection setting acquisition means 14 Firmware update means 15 Route information acquisition means 16 IPv4 connection method automatic discrimination means 17 IPv6 migration setting request means 18 IPv6 Gray Deployment setting acquisition unit 21 IPv6 migration connection setting information management table 21A IPv6 migration connection setting information management table 21C IPv6 migration connection setting information management table 22 the routing information management table 22a Type
22b IPv6 network 23 Operator information management table 23a Type
23b Carrier 23c IPv4 Connection Method 23d Provisioning Server 24 IPv4 Connection Setting Management Table 31 IPv6 Migration Technology Specifying Means 32 IPv4 Connection Setting Informing Means 32A Firmware / IPv4 Connection Setting Informing Means 32B IPv6 Migration Setting Informing Means 32C IPv4 Connection Setting Informing Means 33 Connection Setting agent acquisition means 34 Data format conversion means 41 IPv6 migration technology management table 41A IPv6 migration technology management table 41C IPv6 migration technology management table 41a IPv6 network 41b IPv6 migration 41c Config file 41d firmware file 41e model code 42 IPv6 migration connection setting management table 42a Config file 42b Config-ID
42c PE Router 42d Provisioning Server 43 Firmware Management Table 44 IPv4 Connection Setting Management Table 44a Server Directory 44b Provisioning Server 44c Server Data Format 44d Client Data Format 44e First Parameter 44f Second Parameter 51 Route Information Distribution Unit 61 Route Information Management Table 71 IPv4 Connection setting notification means 81 IPv4 connection setting management table 81 C IPv4 connection setting management table 100 HGW device 100 A HGW device 100 B HGW device 100 C HGW device 110 HGW device 120 HGW device 150 HGW connection terminal 160 HGW connection terminal 170 HGW connection terminal 180 IPv6 connection destination 190 IPv4 connection destination 200 setting management server 200A setting management server 2 00C setting management server 300 route information management server 400 provisioning server 400C provisioning server 410 provisioning server 420 for DS-Lite MAP rule distribution server 500 for MAP-E IPv6 network 510 IPv6 network 550 PE router 560 PE router 570 PE router 580 PE router 600 IPv4 network 610 IPv4 network 650 IPv4 device

Claims (10)

An IPv6 network system having an IPv4 connection function of connecting a home gateway device (Home Gateway device: hereinafter abbreviated as 'HGW device') connected to an IPv6 network to an IPv4 connection destination connected to an IPv4 network via the IPv6 network And
The configuration management server having a specific function of IPv6 migration technology capable of using the HGW apparatus is provided on the IPv6 network,
The HGW device is
IPv6 connecting means for acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
IPv4 connection setting request means for connecting to the setting management server, adding an IPv6 address indicating an acquisition request source, and making the setting management server a request for acquiring IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus;
IPv4 connection setting acquisition means for acquiring the IPv4 connection setting information according to the IPv6 migration technology for the HGW apparatus transmitted as a response to the acquisition request from the setting management server, and storing the information in the storage device;
The setting management server is
The IPv6 network specified by the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source with reference to the IPv6 migration technology management table in which the IPv6 migration technology available for each IPv6 network is set and registered in advance IPv6 migration technology specifying means for specifying an IPv6 migration technology that can be used by the HGW device in
By referring to the IPv6 migration connection setting management table in which information required for the IPv4 network connection by the IPv6 migration technology registered and registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology specifying means The IPv4 connection setting information required to connect to the IPv4 network is acquired using the identified IPv6 migration technology, and the IPv4 connection setting information by the IPv6 migration technology in the HGW apparatus of the acquisition request source is acquired. And IPv4 connection setting notification means for distributing to the HGW device;
The HGW apparatus establishes a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device. Network system. The HGW device is
A unit for requesting the setting management server to obtain firmware information to execute a network connection operation in the HGW apparatus;
A unit that acquires firmware information on the HGW apparatus transmitted from the setting management server and stores the acquired firmware information in the storage device;
And firmware updating means for updating the firmware of the HGW apparatus according to the firmware information stored in the storage device.
The setting management server is
The IPv6 used by the HGW apparatus of the acquisition request source with reference to the firmware management table in which the firmware information for performing the connection operation with the IPv4 network by the IPv6 migration technology set and registered in the IPv6 migration technology management table is registered. The IPv6 network system according to claim 1, further comprising: means for acquiring firmware information for performing connection operation with the IPv4 network by migration technology and transmitting the firmware information to the HGW apparatus. On the IPv6 network,
A route information management server that manages a route information management table in which route information for each IPv6 network is set and registered in advance;
A provider of the IPv6 network and a provisioning server which is disposed for each IPv4 connection method and manages the IPv4 connection setting information in each of the operators;
The HGW device is
A provider information management table in which address information on each of the provisioning servers arranged for each provider of the IPv6 network and for each IPv4 connection method is associated and registered in advance, and further,
The route information management server disposed on the IPv6 network is accessed to acquire the route information registered in the route information management table and set in the acquired route information and the provider information management table IPv4 connection method automatic determination means for determining the IPv4 connection method available to the HGW apparatus with reference to the registered information;
Means for acquiring the IPv4 connection setting information using the IPv4 connection method in the HGW apparatus from the provisioning server corresponding to the IPv4 connection method determined by the IPv4 connection method automatic determination means and storing the information in the storage device The IPv6 network system according to claim 1 or 2, characterized in that On the IPv6 network,
When a provisioning server is set in which the IPv4 connection setting information based on any migration technology is registered in advance in a data format not supported by the HGW device:
The setting management server is
When the acquisition request for the IPv4 connection setting information by the migration technology of the provisioning server from the HGW device is received, the provisioning server is accessed instead of the HGW device, and the IPv4 connection setting information on the HGW device is Connection setting proxy acquisition means for acquiring and temporarily storing;
Data format conversion means for converting the IPv4 connection setting information temporarily stored by the connection setting proxy acquisition means into a data format that can be used by the HGW apparatus of acquisition request source;
And means for distributing the IPv4 connection setting information converted into a data format that can be used by the HGW apparatus of acquisition request source by the data format conversion means to the HGW apparatus of acquisition request source. The IPv6 network system according to any one of claims 1 to 3, characterized in that The HGW device is
The IPv4 connection setting request means transmits the acquisition request to be sent to the setting management server, including the model code of the HGW apparatus.
The setting management server is
Based on the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source and the information including the model code of the HGW apparatus by the IPv6 migration technology specifying means, the prefix information of the IPv6 address of the HGW apparatus The IPv6 network system according to claim 4, wherein an IPv6 migration technology that can be used in the specified IPv6 network is specified. A home gateway apparatus having an IPv4 connection function of connecting to an IPv6 network and connecting to an IPv4 connection destination connected to an IPv4 network via the IPv6 network,
On the IPv6 network,
With reference to the IPv6 migration technology management table in which IPv6 migration technology that can be used for each of the IPv6 networks is set in advance and registered, the IPv6 network specified by the prefix information of the IPv6 address indicating acquisition request source is acquired IPv6 migration technology specifying means for specifying an IPv6 migration technology that can be used in a request source;
By referring to the IPv6 migration connection setting management table in which information required for the IPv4 network connection by the IPv6 migration technology registered and registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology specifying means The IPv4 connection setting information required to connect to the IPv4 network is acquired using the specified IPv6 migration technology, and the acquisition request source is acquired as the IPv4 connection setting information by the IPv6 migration technology in the acquisition request source. In a configuration in which a setting management server having an IPv4 connection setting notifying means for distributing is arranged,
IPv6 connecting means for acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
Connect to the setting management server, attach an IPv6 address indicating an acquisition request source, and issue an IPv4 connection setting request to the setting management server to request acquisition of the IPv4 connection setting information by the IPv6 migration technology related to the acquisition request source Means,
IPv4 connection setting acquisition means for acquiring the IPv4 connection setting information according to the IPv6 migration technology transmitted from the setting management server as a response to the acquisition request, and storing the information in a storage device,
A home gateway apparatus characterized by establishing a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device. An IPv6 network system having an IPv4 connection function of connecting a home gateway device (Home Gateway device: hereinafter abbreviated as 'HGW device') connected to an IPv6 network to an IPv4 connection destination connected to an IPv4 network via the IPv6 network IPv6 migration technology application method for connecting to the IPv4 network by the IPv6 migration technology in
The configuration management server having a specific function of IPv6 migration technology capable of using the HGW apparatus is provided on the IPv6 network,
The HGW device is
An IPv6 connecting step of acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
An IPv4 connection setting request step of connecting to the setting management server, attaching an IPv6 address indicating an acquisition request source, and making the setting management server an acquisition request of IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus;
An IPv4 connection setting acquisition step of acquiring the IPv4 connection setting information according to the IPv6 migration technology related to the HGW apparatus transmitted as a response to the acquisition request from the setting management server, and storing the information in a storage device;
The setting management server is
The IPv6 network specified by the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source with reference to the IPv6 migration technology management table in which the IPv6 migration technology available for each IPv6 network is set and registered in advance An IPv6 migration technology specifying step of specifying an IPv6 migration technology that can be used by the HGW device in
By referring to the IPv6 migration connection setting management table in which information required for the IPv4 network connection by the IPv6 migration technology registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology identification step is performed. The IPv4 connection setting information required to connect to the IPv4 network is acquired using the identified IPv6 migration technology, and the IPv4 connection setting information by the IPv6 migration technology in the HGW apparatus of the acquisition request source is acquired. And an IPv4 connection setting notification step of delivering to the HGW device;
The HGW apparatus establishes a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device. Migration technology application method. The HGW device is
Requesting the setting management server to obtain firmware information to execute a network connection operation in the HGW device;
Acquiring firmware information on the HGW apparatus transmitted from the setting management server and storing the firmware information in the storage device;
And F. updating the firmware of the HGW apparatus with the firmware information stored in the storage device.
The setting management server is
The IPv6 used by the HGW apparatus of the acquisition request source with reference to the firmware management table in which the firmware information for performing the connection operation with the IPv4 network by the IPv6 migration technology set and registered in the IPv6 migration technology management table is registered. The IPv6 migration technology application method according to claim 7, further comprising: acquiring firmware information for performing a connection operation with the IPv4 network by the migration technology and transmitting the firmware information to the HGW apparatus. On the IPv6 network,
A route information management server that manages a route information management table in which route information for each IPv6 network is set and registered in advance;
A provider of the IPv6 network and a provisioning server which is disposed for each IPv4 connection method and manages the IPv4 connection setting information in each of the operators;
The HGW device is
A provider information management table in which address information on each of the provisioning servers arranged for each provider of the IPv6 network and for each IPv4 connection method is associated and registered in advance, further,
The route information management server disposed on the IPv6 network is accessed to acquire the route information registered in the route information management table and set in the acquired route information and the provider information management table An IPv4 connection method automatic determination step of determining an IPv4 connection method available to the HGW apparatus with reference to registered information;
Acquiring the IPv4 connection setting information using the IPv4 connection method in the HGW apparatus from the provisioning server corresponding to the IPv4 connection method determined in the IPv4 connection method automatic determination step and storing the information in the storage device The IPv6 migration technology application method according to claim 7 or 8, characterized in that An IPv6 network system having an IPv4 connection function of connecting a home gateway device (Home Gateway device: hereinafter abbreviated as 'HGW device') connected to an IPv6 network to an IPv4 connection destination connected to an IPv4 network via the IPv6 network An IPv6 migration technology application program which is executed by a computer to connect to the IPv4 network by the IPv6 migration technology in
The configuration management server having a specific function of IPv6 migration technology capable of using the HGW apparatus is provided on the IPv6 network,
The HGW device is
IPv6 connection processing for acquiring information for connecting to the IPv6 network and connecting to the IPv6 network;
IPv4 connection setting request processing for connecting to the setting management server, attaching an IPv6 address indicating an acquisition request source, and making the setting management server an acquisition request for IPv4 connection setting information by the IPv6 migration technology related to the HGW apparatus;
IPv4 connection setting acquisition processing for acquiring the IPv4 connection setting information according to the IPv6 migration technology for the HGW apparatus transmitted as a response to the acquisition request from the setting management server, and storing the information in a storage device;
The setting management server is
The IPv6 network specified by the prefix information of the IPv6 address of the HGW apparatus of the acquisition request source with reference to the IPv6 migration technology management table in which the IPv6 migration technology available for each IPv6 network is set and registered in advance IPv6 migration technology specification processing that specifies the IPv6 migration technology that can be used by the HGW device in
By referring to the IPv6 migration connection setting management table in which the information required for the IPv4 network connection by the IPv6 migration technology registered and registered in the IPv6 migration technology management table is registered in advance, the IPv6 migration technology specification processing The IPv4 connection setting information required to connect to the IPv4 network is acquired using the identified IPv6 migration technology, and the IPv4 connection setting information by the IPv6 migration technology in the HGW apparatus of the acquisition request source is acquired. IPv4 connection setting notification processing for distribution to the HGW device,
The HGW apparatus establishes a connection with the IPv4 connection destination connected to the IPv4 network via the IPv6 network based on the IPv4 connection setting information stored in the storage device. Migration technology application program.

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