JP2009246414A - Transmission method for configuration information, transmission system for configuration information, router, and terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set configuration information (config, hereafter) from a server on the Internet through a router to a terminal connected to a LAN. <P>SOLUTION: A transmission method for the config is provided for transmitting the config stored in the server connected to a WAN through the router to the terminal connected to the LAN. The router acquires the config from the server through an external network, the terminal transmits the first command of an address request through the LAN to the router when activated, and the router transmits a second command including an initial setting instruction together with an address through the LAN to the terminal. When receiving the second command from the router through the LAN, the terminal transmits a third command requesting the config through the LAN to the router. When receiving the third command from the terminal through the LAN, the router transmits the config through the LAN to the terminal. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is connected to each other by a configuration information transmission method, a configuration information transmission system, a local area network, and the like for setting configuration information to a terminal connected to a router by a local area network or the like. It relates to routers and terminals. Here, the configuration information is, for example, a set of parameter values to be set in the terminal.

  Conventionally, as a method to remotely complete the configuration work on the router or terminal at the site where the router or terminal is installed, or to change the router configuration or execute the execution status acquisition, Access means and methods are defined (for example, see Patent Document 1).

  In Patent Document 1, a router corresponding to zero configuration accesses a primary server, the router configuration corresponding to zero configuration is actually stored, and the location of a secondary server that can be controlled remotely is notified. A method to automatically acquire configuration information and perform remote management is defined. Here, zero configuration means that configuration information is not set in the device at the time of factory shipment. It is necessary to set configuration information for a device with zero configuration by some method before use.

  The method described in Patent Document 1 is a method capable of remote control only in an environment in which a primary server or a secondary server can be directly accessed. Therefore, since a network address translation (NAT) is used, a terminal that cannot directly access a server with a global IP address can be configured into a zero configuration device as described in Patent Document 1. It has been difficult to set the configuration information.

In addition, each device must support zero configuration. However, in a small embedded device or the like, it is difficult to implement a protocol stack because the program size is too small. Therefore, there has been a demand for a method that can easily implement a device for setting configuration information in a device having zero configuration.
Japanese Patent No. 3774433

  Conventionally, in order to realize setting of configuration information to a device with zero configuration, it is necessary to implement a protocol stack for the device to communicate with a setting server on the network.

  However, small embedded devices have limited processing power and memory capacity, making it difficult to implement a protocol stack. Further, when the terminals exist inside the NAT router as viewed from the Internet, there is a problem that it is difficult to access these terminals from the server side on the Internet.

  Accordingly, the present invention provides a configuration information transmission method, a configuration information transmission system, and a configuration information transmission system that can set configuration information from a server on the Internet to a terminal connected to a local area network via a router. An object is to provide a router and a terminal connected to each other by a local area network or the like.

  According to the present invention, there is provided a configuration information transmission method for transmitting configuration information stored in a server connected to an external network to a terminal connected to the internal network via a router, The router obtains the configuration information from the server via the external network, and the terminal transmits a first command for an address request to the router via the internal network at startup. And a step in which the router transmits a second command including an initial setting command together with the address to the terminal via the internal network, and the terminal transmits the second command to the terminal via the internal network. If the second command is received from a router, the internal network A third command for requesting configuration information via the internal network, and if the router receives the third command from the terminal via the internal network, via the internal network And a step of transmitting the configuration information to the terminal. A method of transmitting configuration information is provided.

  Further, according to the present invention, there is provided a configuration information transmitting method for transmitting configuration information stored in a server connected to an external network to a terminal connected to the internal network via a router. The router acquires the configuration information from the server via the external network, and the router receives a first command including a command for changing settings via the internal network. Transmitting to the terminal; and if the terminal receives the first command from the router via the internal network, a second command for requesting configuration information via the internal network. Transmitting to the router; and the router includes the internal network. If the second command is received from the terminal via the network, a third command including an instruction for causing the terminal to execute the fourth command including the configuration information via the internal network. To the terminal, and if the terminal receives the third command from the router via the internal network, the terminal sends the fourth command to the router via the internal network. And when the router receives a signal based on the fourth command from the terminal via the internal network, a response to the signal based on the fourth command is transmitted to the fifth command via the internal network. And transmitting to the terminal, the terminal via the internal network If the fifth command is received from the router, the information about the response is transmitted to the router via the internal network, and the router receives the information about the response via the internal network. Then, there is provided a method for transmitting configuration information, comprising the step of transferring information related to the response to the server via the external network.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. A configuration information transmission system for transmitting configuration information to the terminal via the router, wherein the router acquires the configuration information from the server via the external network. The terminal has a means for transmitting a first command of an address request to the router via the internal network at the time of startup, and the router is initialized together with the address via the internal network. Means for transmitting a second command including a command to the terminal Means for transmitting a third command requesting configuration information to the router via the internal network when the terminal receives the second command from the router via the internal network. Comprising: means for transmitting the configuration information to the terminal via the internal network when the router receives the third command from the terminal via the internal network. A configuration information transmission system is provided.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. A configuration information transmission system for transmitting configuration information to the terminal via the router, wherein the router acquires the configuration information from the server via the external network. The router includes means for transmitting a first command including a command for changing a setting to the terminal via the internal network, and the terminal transmits the first command from the router via the internal network. If the first command is received via the internal network Means for transmitting a second command for requesting configuration information to the router, and when the router receives the second command from the terminal via the internal network, via the internal network, Means for transmitting to the terminal a third command that includes the configuration information and includes a command for causing the terminal to execute a fourth command, the terminal from the router via the internal network; If the third command is received, means for executing the fourth command with the router as a partner via the internal network, the router sends the fourth command from the terminal via the internal network. When the signal is received by the fourth command via the internal network, Means for transmitting a response to the signal included in a fifth command to the terminal, and when the terminal receives the fifth command from the router via the internal network, Means for transmitting information relating to the response to the router, and if the router receives the information relating to the response via the internal network, the information relating to the response is transmitted to the server via the external network. There is provided a system for transmitting configuration information, characterized in that the system includes a means for transferring data to the system.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. A configuration information transmission system for transmitting configuration information to the terminal via the router, and means for acquiring the configuration information from the server via the external network; Means for receiving, from the terminal, a first command for an address request via the internal network when the terminal is activated, and a second command including an initial setting command together with the address via the internal network Means for transmitting to the terminal, and the internal network Means for receiving a third command for requesting configuration information via the internal network from the terminal that has received the second command from the router via the internal network, and from the terminal via the internal network And a means for transmitting the configuration information to the terminal via the internal network when the third command is received.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. A configuration information transmission system for transmitting configuration information to the terminal via the router, and means for acquiring the configuration information from the server via the external network; Means for transmitting a first command including a command for changing the setting to the terminal via the internal network; and from the terminal that has received the first command from the router via the internal network. Configuration information via the internal network Means for receiving a second command to request, and if the second command is received from the terminal via the internal network, the configuration command is included and the fourth command is received via the internal network. A means for transmitting a third command including a command to be executed by the terminal to the terminal, and the terminal that has received the third command from the router via the internal network, via the internal network, When a signal based on the fourth command is received from the terminal via the internal network and means serving as a partner to execute the fourth command, a signal based on the fourth command is transmitted via the internal network. Means for transmitting a response to the terminal in a fifth command, and the internal network Means for receiving information on the response from the terminal that has received the fifth command from the router via the internal network, and information on the response via the internal network And a means for transferring information related to the response to the server via the external network.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. The configuration information is transmitted to the terminal via the router, and is included in the configuration information transmission system. Means for transmitting the configuration information from the server to the router via an external network, and a second command including an initial setting command from the router via the internal network, together with the address. Then, via the internal network Means for transmitting a third command to request router information to the router, and the configuration information from the router that has received the third command from the terminal via the internal network via the internal network. And a means for receiving the terminal.

Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. Configuration information that is transmitted to the terminal via the router, and included in the configuration information transmission system, from the router that acquired the configuration information from the server via the external network Means for receiving a first command including a command for changing settings via the internal network;
Means for transmitting a second command for requesting configuration information to the router via the internal network when the first command is received from the router via the internal network; Then, from the router that has received the second command from the terminal, a third command including the configuration information and a command for causing the terminal to execute the fourth command is received via the internal network. Means, and if the third command is received from the router via the internal network, means for executing the fourth command against the router via the internal network, and via the internal network Receiving the signal of the fourth command from the terminal. Means for receiving a fifth command including a response to the signal according to the fourth command via the internal network, and if the fifth command is received from the router via the internal network, the internal command Means for transmitting information relating to the response to the router via a network.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. A configuration information transmission system for transmitting configuration information to the terminal via the router, and means for acquiring the configuration information from the server via the external network; Means for receiving, from the terminal, a first command for an address request via the internal network when the terminal is activated, and a second command including an initial setting command together with the address via the internal network Means for transmitting to the terminal, and the internal network Means for receiving a third command for requesting configuration information via the internal network from the terminal that has received the second command from the router via the internal network, and from the terminal via the internal network When receiving the third command, there is provided a program for causing a computer to function as a router, comprising: means for transmitting the configuration information to the terminal via the internal network .

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. A configuration information transmission system for transmitting configuration information to the terminal via the router, and means for acquiring the configuration information from the server via the external network; Means for transmitting a first command including a command for changing the setting to the terminal via the internal network; and from the terminal that has received the first command from the router via the internal network. Configuration information via the internal network Means for receiving a second command to request, and if the second command is received from the terminal via the internal network, the configuration command is included and the fourth command is received via the internal network. A means for transmitting a third command including a command to be executed by the terminal to the terminal, and the terminal that has received the third command from the router via the internal network, via the internal network, When a signal based on the fourth command is received from the terminal via the internal network and means serving as a partner to execute the fourth command, a signal based on the fourth command is transmitted via the internal network. Means for transmitting a response to the terminal in a fifth command, and the internal network Means for receiving information on the response from the terminal that has received the fifth command from the router via the internal network, and information on the response via the internal network And a means for transferring information related to the response to the server via the external network. A program for causing a computer to function as a router is provided.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. The configuration information is transmitted to the terminal via the router, and is included in the configuration information transmission system. Means for transmitting the configuration information from the server to the router via an external network, and a second command including an initial setting command from the router via the internal network, together with the address. Then, via the internal network Means for transmitting a third command to request router information to the router, and the configuration information from the router that has received the third command from the terminal via the internal network via the internal network. And a program for causing a computer to function as a terminal.

  Further, according to the present invention, a server connected to an external network, a router connected to the external network and the internal network, and a terminal connected to the internal network are provided and stored in the server. Configuration information that is transmitted to the terminal via the router, and included in the configuration information transmission system, from the router that acquired the configuration information from the server via the external network Means for receiving a first command including a command for changing settings via the internal network; and if the first command is received from the router via the internal network, the internal network Requesting configuration information via the second Means for transmitting a command to the router, and from the router that has received the second command from the terminal via the internal network, includes the configuration information and the fourth command from the router that has received the second command from the terminal. Means for receiving a third command including a command for causing the router to execute, and if the third command is received from the router via the internal network, the router as a partner via the internal network Means for executing the fourth command; and a response to the signal based on the fourth command via the internal network from the router that has received the signal based on the fourth command from the terminal via the internal network. Via a means for receiving a fifth command and the internal network, A program for causing a computer to function as a terminal, comprising: means for transmitting information related to the response to the router via the internal network when the fifth command is received from a computer. Provided.

  According to the present invention, the configuration information acquired from the server by the router via the external network can be transferred to a terminal connected to the internal network and equipped with a standard implementation such as HTTP or DHCP. A device that does not support configuration can be changed to a device that supports zero configuration simply by installing a standard implementation such as HTTP or DHCP.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  In a zero configuration system that realizes automatic acquisition and remote management of configuration information, the router acquires configuration information of network terminals on the same link under the router from the server and distributes it to the terminals. To achieve zero configuration of the entire system, including other terminals.

  Hereinafter, a zero configuration system that realizes automatic acquisition of configuration information and remote management is abbreviated as a zero configuration system.

  As shown in FIG. 1, the configuration of the terminal 3 is acquired from the server 1 that remotely controls the zero configuration system by the router 2 that supports the zero configuration system. Also, the router 2 discloses configuration information to the terminal 3 using an HTTP server function or the like.

  Next, the router 2 uses the DHCP server function to issue an IP address, and issues a configuration acquisition command to the terminal 3 using a DHCP vendor specific information option or the like.

  Upon receiving this DHCP server packet, the terminal 3 uses the DHCP client function to give the terminal 3 an IP address. The terminal 3 acquires the configuration of the terminal 3 from the router 2 using the HTTP client function in accordance with the configuration acquisition command specified by the DHCP vendor specific information option. Furthermore, the terminal 3 sets the apparatus using the acquired configuration.

  The terminals 4 and 5 also execute the same operation as the terminal 3 and set the configuration corresponding to each terminal.

  When the terminal 3 is remotely operated from the server 1, the server 1 issues a command for controlling the terminal 3 to the router 2.

  The router 2 that has received the command issued to the terminal 3 publishes the issued command to the terminal 3 using the HTTP server function in the same manner as the configuration acquisition. A DHCP vendor-specific information option command that uniquely defines remote command acquisition is prepared, and configuration information is re-acquired from the device 3 using DHCP FORCERENE.

  The terminal 3, which has reacquired the DHCP server packet, uses the DHCP client function and operates according to the remote control command specified by the DHCP vendor specific information option.

  The terminals 4 and 5 are also remotely controlled from the server 1 by executing the same operation as the terminal 3.

  That is, the device that needs to implement the zero configuration protocol is limited to the router 2, and the terminals 3, 4, and 5 under the router 2 do not need to implement the zero configuration protocol. Further, even if the terminals 3, 4, and 5 cannot be directly referred to from the network of the server 1 due to the NAT, the terminals 3, 4, 5 can be accessed indirectly.

  Referring to FIG. 1, in this embodiment, the router 2 corresponding to the zero configuration system, the server 1 of the zero configuration system that executes configuration management and remote control commands of the router 2, and the router 2 are built-in modules. A terminal 3 corresponding to the present invention, which is a parent device, and a terminal 4 and a terminal 5 corresponding to the present invention placed on the same IP or IPv6 network link of the router 2.

  When referring to the terminal 3, the terminal 4, and the terminal 5 from the server 1, it is possible to refer to the router 2 as the module 3, the module 4, and the module 5 of the router 2, respectively. That is, the server 1 handles the router 2, the terminal 3, the terminal 4, and the terminal 5 as one virtual device 6 including the router 2, the module 3, the module 4, and the module 5.

  Regarding the protocol corresponding to the zero configuration system executed between the server 1 and the router 2, it is assumed that configuration setting and remote control for the router 2 can be executed using Japanese Patent No. 3774433.

  The router 2 includes the HTTP / HTTPS server function 21 and the DHCP server function 22 shown in FIG. The HTTP / HTTPS server function is a standard protocol represented by RFC 2068, 2616, 2617, and the like. The DHCP server function is a standard protocol typified by RFC 2131, 3315 and the like.

  The terminal 3 is a parent device when the router 2 is defined as a module such as a router card, and the terminal 3 and the router 2 are connected by IP or IPv6 as in a normal LAN.

  The terminal 4 and the terminal 5 are connected to the router 2 by a cable such as Ethernet (registered trademark) or a wireless LAN.

  The terminal 3 includes an HTTP / HTTPS client function 31 and a DHCP client function 32. The HTTP / HTTPS client and the DHCP client are also standard protocols as described above. Similarly, the terminal 4 and the terminal 5 have an HTTP / HTTPS client function and a DHCP client function.

  In the terminals 3, 4, and 5, an ID and a password for accessing the HTTP / HTTPS server corresponding to the module ID as the virtual device 6 (see FIG. 1) are registered. This ID and password are registered in the server 1 as the configuration of each terminal. Since the router 2 acquires this information from the server 1 using the zero configuration protocol, it is not necessary to register ID and password information.

  The operation in which the terminal 3 acquires the initial configuration will be described with reference to the flowchart of FIG.

  The server 1 and the router 2 acquire the configuration information of the router 2 using the zero configuration setting operation defined in Patent Document 1. At the same time, the configuration information of the terminal 3, the module ID for accessing the router 2 from the terminal 3, and the password are acquired using the same method as the configuration information acquisition method of the router 2 (201). That is, the router 2 is assumed to be the virtual device 6 including the router 2 and the terminal 3, and acquires the configuration information of the module (router) 2 and the configuration information of the module (terminal) 3 of the virtual device 6. To the server 1. From the server 1, it seems that the virtual device 6 which is a single device corresponding to zero configuration information is acquiring the configuration information of the virtual device 6 itself.

  As a supplement, the configuration acquisition unit is expressed so that it can be acquired separately for each module. However, in this method, it is acquired in the unit determined by the server 1 or it is unique by the router 2. The problem is solved by generating a configuration according to the module configuration rules determined in (1).

  The router 2 stores the configuration acquired in S201 in the HTTP / HTTPS server 21 of FIG. 2 and sets the HTTP access ID so that it can be referred to by the acquired module ID and password (S202).

  Next, the router 2 issues an IP address to the terminal 3 in response to an address request (S203) from the terminal 3 using the DHCP server function 22 of FIG. At the same time, a configuration acquisition command defined between the router 2 and the terminal 3 is written in a vendor-specific information class option (vendor-class-identifier), which is a DHCP option, and transmitted (S301). Here, the content of the vendor-specific information class option is an option that can be freely defined by the vendor, and is defined between the terminal 3 and the router 2 in advance.

  The terminal 3 that has received the DHCP packet in S301 executes the DHCP client function 32 of FIG. 2, and automatically assigns an IP address to the terminal 3 (S302).

  Further, the terminal 3 uses the HTTP / HTTPS client function 31 of FIG. 2 as a trigger with the configuration acquisition command of the DHCP vendor specific information option as a trigger, and sends the access ID and password stored in the terminal 3 to the router 2. The HTTP GET is executed using (204), the configuration information of the terminal 3 is acquired (S303), and the acquired configuration information is set in the terminal (S304).

  The terminal 4 and the terminal 5 acquire the configuration in the same procedure.

  Next, the operation of remote control from the server 1 to the terminal 3 will be described using the flowchart of FIG.

  The server 1 issues a remote execution command to the virtual device 6 module 3 using the operation defined in Patent Document 1 to the router 2 (S204).

  The router 2 stores the execution command acquired in S204 in the HTTP / HTTPS server 21 of FIG. 2 and sets it so that it can be referred to by the access ID and password of HTTP set in advance in the terminal 3 (S205).

  Next, the router 2 uses the DHCP server function 22 shown in FIG. 2 to describe an execution command acquisition command defined between the router 2 and the terminal 3 in the vendor-specific information option, and in the terminal 3, the DHCP FORCERENEW (IPv4 ) Or, DHCP RECONFIGURE (IPv6) is transmitted to instruct the acquisition of the execution command (S305).

  The terminal 3 that has received the DHCP packet in S305 transmits an HTTP GET with the access ID and password stored in the terminal 3 to the router 2 using the HTTP / HTTPS client function 31 of FIG. S206). As a result, the terminal 3 acquires the contents of the execution command for the terminal 3 stored in the router 2 (S307).

  The terminal 3 executes the command using the remote execution command acquired by HTTP GET as a trigger (S308). For example, the terminal 3 executes the ping command and obtains information related to the response from the router 2 as the execution result. However, any instruction other than the ping instruction may be executed as long as the instruction can obtain a response from the router.

  The terminal 3 executes HTTP PUT to the router 2 and transmits the execution result of 308 to the router 2 (S207).

  The router 2 returns the response received in S207 to the server 1 as an execution command response of the module 3 (S208).

  The terminals 4 and 5 are also remotely controlled in the same procedure.

  In this embodiment, in order to simplify the description, address distribution using DHCP and option setting are used in communication from the router 2 to the terminals 3, 4, and 5. Further, in the communication in which the terminals 3, 4, and 5 obtain information from the router 2, HTTP / HTTPS is used. However, these protocols are not necessarily used, and vendor-specific protocols may be used. Other standard protocols such as UPnP may be used.

  In this embodiment, in order to specify the module ID of the terminal 3, the module ID and the access password are set in advance for the terminal 3. However, the ID and password are determined from the device ID of the terminal 3. You may use the automatic generation mechanism.

  In the present invention, the means of Patent Document 1 is used as a means for realizing zero configuration for the router 2, but if the zero configuration can be realized, the method described in Patent Document 1 is not necessary. good.

  As described above, in the present embodiment, the following effects can be obtained.

  The first effect is that a device that does not support zero configuration can be changed to a device that supports zero configuration simply by installing a standard implementation such as HTTP or DHCP. That is, the terminals 3, 4, and 5 do not implement the zero configuration system protocol, which is a relatively large program size. It is possible to set and control.

  The second effect is that the configuration for setting the configuration information in the terminals 3, 4, and 5 even when the NAT is set in the router 2 and the terminals 3, 4, and 5 cannot be directly accessed from the external network. It will be possible. In other words, since the servers 3, 4, and 5 are seen from the server 1 as modules of the virtual terminal 6, even if a NAT is set in the router 2 and the network on the LAN is not directly accessible, The remote control can be extended to the terminals 3, 4 and 5 via the router 2.

  The third effect is that any device can be converted into a zero configuration device by incorporating the router 2 in the terminal 3 like the terminal 3. In other words, as long as a simple IP stack is implemented, zero configuration information can be implemented for any device.

  The server 1, the router 2, and the terminals 3, 4, and 5 are each configured by hardware and software that operates on these.

  The present invention can be used, for example, for setting information such as configuration information in a device connected to a corporate LAN or a home LAN by wire or wireless.

It is a conceptual diagram which shows the structure of the whole system by embodiment of this invention. It is a block diagram which shows the structure of the router by embodiment of this invention, and the structure of a terminal. It is a sequence diagram which shows operation | movement in the case of setting configuration information to a terminal initially by embodiment of this invention. It is a sequence diagram which shows operation | movement in the case of setting configuration information to a terminal at the time other than the initial stage by embodiment of this invention.

Explanation of symbols

1 Server 2 Router 3, 4, 5 Terminal 6 Virtual device

Claims (21)

A configuration information transmission method for transmitting configuration information stored in a server connected to an external network to a terminal connected to the internal network via a router,
The router obtaining the configuration information from the server via the external network;
The terminal sends a first command of an address request to the router via the internal network at startup;
The router sends a second command including an initial setting command to the terminal together with the address via the internal network;
If the terminal receives the second command from the router via the internal network, the terminal transmits a third command requesting configuration information to the router via the internal network;
If the router receives the third command from the terminal via the internal network, transmitting the configuration information to the terminal via the internal network;
A method of transmitting configuration information, comprising: In the configuration information transmission method according to claim 1,
The configuration command transmission method, wherein the second command is a DHCP command, and the initial setting command is described as a vendor-specific information option. In the configuration information transmission method according to claim 1 or 2,
The third command is an HTTP GET command, and the configuration information transmission method. In the configuration information transmission method according to any one of claims 1 to 3,
Configuration information is a configuration information transmission method characterized in that it is information necessary for the terminal to operate. A configuration information transmission method for transmitting configuration information stored in a server connected to an external network to a terminal connected to the internal network via a router,
The router obtaining the configuration information from the server via the external network;
The router sending a first command including a command for changing settings to the terminal via the internal network;
If the terminal receives the first command from the router via the internal network, sends a second command requesting configuration information to the router via the internal network;
If the router receives the second command from the terminal via the internal network, a command for causing the terminal to execute the fourth command including the configuration information via the internal network Transmitting a third command including: to the terminal;
If the terminal receives the third command from the router via the internal network, the terminal executes the fourth command against the router via the internal network;
If the router receives a signal based on the fourth command from the terminal via the internal network, the terminal includes a response to the signal based on the fourth command in the fifth command via the internal network. Sending to
If the terminal receives the fifth command from the router via the internal network, sends information about the response to the router via the internal network;
If the router receives information about the response via the internal network, forwarding the information about the response to the server via the external network;
A method of transmitting configuration information, comprising: In the configuration information transmission method according to claim 5,
The first command is a DHCP FORCERENEW command, and the initial setting command is described as a vendor-specific information option. In the configuration information transmission method according to claim 5 or 6,
The method for transmitting configuration information, wherein the second command is an HTTP GET command. The configuration information transmission method according to any one of claims 5 to 7,
The third command is an OK response to the HTTP GET command, and transmits the configuration information. In the configuration information transmission method according to any one of claims 5 to 8,
The configuration command transmission method, wherein the fourth command is a ping command. In the configuration information transmission method according to any one of claims 5 to 9,
The fifth command is an HTTP PUT command, wherein the configuration information is transmitted. In the configuration information transmitting method according to any one of claims 5 to 10,
Configuration information is a configuration information transmission method characterized in that it is information necessary for the terminal to operate. A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A configuration information transmission system to be transmitted to the terminal via:
The router comprises means for obtaining the configuration information from the server via the external network;
The terminal comprises means for transmitting a first command for an address request to the router via the internal network at the time of startup,
The router includes means for transmitting a second command including an initial setting command to the terminal together with the address via the internal network;
Means for transmitting a third command for requesting configuration information to the router via the internal network when the terminal receives the second command from the router via the internal network;
The router comprises means for transmitting the configuration information to the terminal via the internal network when the router receives the third command from the terminal via the internal network. Information transmission system. A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A configuration information transmission system to be transmitted to the terminal via:
The router comprises means for obtaining the configuration information from the server via the external network;
The router includes means for transmitting a first command including a command for changing a setting to the terminal via the internal network;
Means for transmitting a second command requesting configuration information to the router via the internal network when the terminal receives the first command from the router via the internal network;
If the router receives the second command from the terminal via the internal network, a command for causing the terminal to execute the fourth command including the configuration information via the internal network Means for transmitting to the terminal a third command including:
When the terminal receives the third command from the router via the internal network, the terminal includes the means for executing the fourth command against the router via the internal network,
If the router receives a signal based on the fourth command from the terminal via the internal network, the terminal includes a response to the signal based on the fourth command in the fifth command via the internal network. Means for transmitting to
If the terminal receives the fifth command from the router via the internal network, the terminal comprises means for transmitting information on the response to the router via the internal network,
If the router receives information about the response via the internal network, the router includes means for transferring the information about the response to the server via the external network. Transmission system. A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A router included in a transmission system for configuration information to be transmitted to the terminal,
Means for obtaining the configuration information from the server via the external network;
Means for receiving a first command of an address request from the terminal via the internal network at the time of startup of the terminal;
Means for transmitting to the terminal a second command including an initial setting command together with the address via the internal network;
Means for receiving, via the internal network, a third command for requesting configuration information from the terminal that has received the second command from the router via the internal network;
Means for transmitting the configuration information to the terminal via the internal network if the third command is received from the terminal via the internal network;
A router comprising: A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A router included in a transmission system for configuration information to be transmitted to the terminal,
Means for obtaining the configuration information from the server via the external network;
Means for transmitting a first command including a command for changing a setting to the terminal via the internal network;
Means for receiving a second command for requesting configuration information via the internal network from the terminal that has received the first command from the router via the internal network;
If the second command is received from the terminal via the internal network, the second command including the configuration information and a command for causing the terminal to execute the fourth command is included via the internal network. Means for transmitting three commands to the terminal;
Means for performing execution of the fourth command performed via the internal network by the terminal that has received the third command from the router via the internal network;
Means for transmitting a response to the signal based on the fourth command in the fifth command to the terminal via the internal network when a signal based on the fourth command is received from the terminal via the internal network When,
Means for receiving information about the response via the internal network from the terminal that has received the fifth command from the router via the internal network;
Means for transferring information about the response to the server via the external network if information about the response is received via the internal network;
A router comprising: A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A terminal included in a transmission system for configuration information to be transmitted to the terminal,
Means for transmitting a first command of an address request via the internal network to the router that has acquired the configuration information from the server via the external network at startup;
When a second command including an initial setting command is received from the router along with the address via the internal network, a third command requesting configuration information is transmitted to the router via the internal network. Means to
Means for receiving the configuration information via the internal network from the router that has received the third command from the terminal via the internal network;
A terminal comprising: A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A terminal included in a transmission system for configuration information to be transmitted to the terminal,
Means for receiving, via the external network, a first command including a command for changing settings from the router that has acquired the configuration information from the server via the internal network;
Means for transmitting a second command requesting configuration information to the router via the internal network if the first command is received from the router via the internal network;
A router including the configuration information and a command for causing the terminal to execute the fourth command via the internal network from the router that has received the second command from the terminal via the internal network. Means for receiving 3 commands;
Means for executing the fourth command against the router via the internal network if the third command is received from the router via the internal network;
Means for receiving a fifth command including a response to the signal based on the fourth command via the internal network from the router that has received the signal based on the fourth command from the terminal via the internal network;
Means for transmitting information about the response to the router via the internal network if the fifth command is received from the router via the internal network;
A terminal comprising: A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A router included in a transmission system for configuration information to be transmitted to the terminal,
Means for obtaining the configuration information from the server via the external network;
Means for receiving a first command of an address request from the terminal via the internal network at the time of startup of the terminal;
Means for transmitting to the terminal a second command including an initial setting command together with the address via the internal network;
Means for receiving, via the internal network, a third command for requesting configuration information from the terminal that has received the second command from the router via the internal network;
Means for transmitting the configuration information to the terminal via the internal network if the third command is received from the terminal via the internal network;
A program for causing a computer to function as a router. A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A router included in a transmission system for configuration information to be transmitted to the terminal,
Means for obtaining the configuration information from the server via the external network;
Means for transmitting a first command including a command for changing a setting to the terminal via the internal network;
Means for receiving a second command for requesting configuration information via the internal network from the terminal that has received the first command from the router via the internal network;
If the second command is received from the terminal via the internal network, the second command including the configuration information and a command for causing the terminal to execute the fourth command is included via the internal network. Means for transmitting three commands to the terminal;
Means for performing execution of the fourth command performed via the internal network by the terminal that has received the third command from the router via the internal network;
Means for transmitting a response to the signal based on the fourth command in the fifth command to the terminal via the internal network when a signal based on the fourth command is received from the terminal via the internal network When,
Means for receiving information about the response via the internal network from the terminal that has received the fifth command from the router via the internal network;
Means for transferring information about the response to the server via the external network if information about the response is received via the internal network;
A program for causing a computer to function as a router. A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A terminal included in a transmission system for configuration information to be transmitted to the terminal,
Means for transmitting a first command of an address request via the internal network to the router that has acquired the configuration information from the server via the external network at startup;
When a second command including an initial setting command is received from the router along with the address via the internal network, a third command requesting configuration information is transmitted to the router via the internal network. Means to
Means for receiving the configuration information via the internal network from the router that has received the third command from the terminal via the internal network;
A program for causing a computer to function as a terminal. A server connected to an external network, a router connected to the external network and an internal network, and a terminal connected to the internal network, and configuration information stored in the server, A terminal included in a transmission system for configuration information to be transmitted to the terminal,
Means for receiving, via the external network, a first command including a command for changing settings from the router that has acquired the configuration information from the server via the internal network;
Means for transmitting a second command requesting configuration information to the router via the internal network if the first command is received from the router via the internal network;
A router including the configuration information and a command for causing the terminal to execute the fourth command via the internal network from the router that has received the second command from the terminal via the internal network. Means for receiving 3 commands;
Means for executing the fourth command against the router via the internal network if the third command is received from the router via the internal network;
Means for receiving a fifth command including a response to the signal based on the fourth command via the internal network from the router that has received the signal based on the fourth command from the terminal via the internal network;
Means for transmitting information about the response to the router via the internal network if the fifth command is received from the router via the internal network;
A program for causing a computer to function as a terminal.

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