CN102104512A - Method and equipment for determining interface information - Google Patents
Method and equipment for determining interface information Download PDFInfo
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- CN102104512A CN102104512A CN2011100031468A CN201110003146A CN102104512A CN 102104512 A CN102104512 A CN 102104512A CN 2011100031468 A CN2011100031468 A CN 2011100031468A CN 201110003146 A CN201110003146 A CN 201110003146A CN 102104512 A CN102104512 A CN 102104512A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2575—NAT traversal using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2582—NAT traversal through control of the NAT server, e.g. using universal plug and play [UPnP]
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Abstract
The embodiment of the invention discloses a method and equipment for determining interface information, relating to the field of communication technology; and the invention is invented for the convenience that a gateway device controls terminals when a plurality of WAN (wide area network) side interfaces work synchronously. The method comprises the steps: receiving a request message for obtaining the WAN side interface information transmitted by a terminal, wherein the information of a distance host is carried in the message; determining a WAN side interface which is used to communicate with the distance host according to the information of the distance host; and transmitting the information of the WAN side interface to the terminal. The embodiment of the invention is mainly used in a home network.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and apparatus of definite interface message.
Background technology
Along with the development of digital home with popularize, will there be the increasing terminal (as household equipment) can internet usage or telco service provider (Service Provider, the miscellaneous service that SP) provides in the subscriber household.
In traditional home network, access device comprises home gateway and digital TV set-top box.Wherein, home gateway (or claiming Modem, modulator-demodulator) generally uses various DSL (Digital Subscriber Line, digital subscriber line) technology with household equipment access carrier network, for household equipment provides the broadband access network service; Digital TV set-top box generally uses cable (Cable) with household equipment access carrier network, for household equipment for example TV digital television service is provided.And along with the trend of integrated services, access device also presents the trend of fusion, a kind of novel family gateway equipment will be uniformly with the network of household equipment access carrier, and provide service for various types of household equipments by various wired or wireless connected modes.
For intercommunication and the control that realizes various dissimilar household equipments, increasing household equipment is all supported UPnP (Universal Plug and Play, UPnP) standard.And for the managing family gateway device, the UPnP standard formulation IGD (Internet Gateway Device, internet gateway device) standard, and in this standard, provide a series of home gateway carried out interface operable.
In actual applications, in order to provide QoS (Quality of Service, service quality) VoD of Bao Zhenging (Video on Demand, video request program) or visual telephone business and avoid network congestion, perhaps in order there to be the ground of differentiation that miscellaneous service is chargeed, operator may wish to use different access waies at different business.Therefore, this just requires the family gateway equipment at least can be simultaneously for household equipment provides two WAN (Wide Area Network, wide area network) side interface, so that household equipment is linked in the network of operator.Here " interface " can refer to have the interface of physical significance, for example, and 3G interface or DSL interface, perhaps " interface " here also can refer to the nonphysical interface on the software view, for example, for same physical interface, can show as " interface " of different IP.When providing the WAN side interface to household equipment, family gateway equipment can be with this WAN side interface information, and for example the information such as IP address of WAN side interface send to household equipment, so that household equipment is linked in the network of operator.
But what the inventor found that existing UPnP IGD standard is primarily aimed at is home gateway only provides the WAN side interface of a job for household equipment situation.And under the situation that a plurality of WAN side interfaces of home gateway are worked simultaneously, household equipment can't learn which WAN side interface home gateway uses communicate by letter with distance host, thereby the proper communication of household equipment and distance host is influenced to some extent.
Summary of the invention
The embodiment of the invention provides a kind of method, equipment of definite interface message, can make gateway device guarantee communicating by letter of terminal and distance host under the situation that a plurality of WAN side interfaces are worked simultaneously.
The embodiment of the invention adopts following technical scheme:
A kind of method of definite interface message comprises:
Receiving terminal sends obtains wide area network WAN side interface information request message, the information of carrying distance host in described message;
WAN side interface according to the definite usefulness of communicating by letter with described distance host of the information of described distance host;
The information of described WAN side interface is sent to described terminal.
A kind of method of definite interface message comprises:
Receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message;
Information according to the WAN side interface of the usefulness of communicating by letter with described distance host of the information of the distance host of described appointment and appointment is bound described WAN side interface.
A kind of gateway device comprises:
Information receiving unit, what be used for that receiving terminal sends obtains wide area network WAN side interface information request message, the information of carrying distance host in described message;
The interface determining unit is used for the WAN side interface according to the definite usefulness of communicating by letter with described distance host of the information of described distance host;
Information transmitting unit is used for the information of described WAN side interface is sent to described terminal.
A kind of gateway device comprises:
Information receiving unit, what be used for that receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message;
Interface binding unit is used for binding described WAN side interface according to the information of the WAN side interface of the usefulness of communicating by letter with described distance host of the information of the distance host of described appointment and appointment.
The embodiment of the invention is determined method, the equipment of interface message, at first obtain wide area network WAN side interface information request message by what the gateway device receiving terminal sent, in described message, carry the information of distance host, determine communicate by letter with the described distance host WAN side interface of usefulness of described terminal by gateway device according to described information then, the information of described WAN side interface is sent to described terminal.As seen from the above, even under the situation that a plurality of WAN side interfaces are worked simultaneously, gateway device still can be determined the WAN side interface according to the WAN side interface information request message of obtaining of terminal, thereby makes gateway device guarantee communicating by letter of terminal and distance host under the situation that a plurality of WAN side interfaces are worked simultaneously.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart that the embodiment of the invention one is determined the method for interface message;
Fig. 2 is the flow chart that the embodiment of the invention two is determined the method for interface message;
Fig. 3 is the flow chart of the method for the embodiment of the invention three;
Fig. 4 is the flow chart of the method for the embodiment of the invention four;
Fig. 5 is the flow chart of the method for the embodiment of the invention five;
Fig. 6 is the flow chart of the method for the embodiment of the invention six;
Fig. 7 is the structure chart of embodiment of the invention gateway device;
Fig. 8 is the schematic diagram of embodiment of the invention gateway device;
Fig. 9 is the another structure chart of embodiment of the invention gateway device;
Figure 10 is the another schematic diagram of embodiment of the invention gateway device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
As shown in Figure 1, the embodiment of the invention one provides a kind of method of definite interface message, comprising:
The described WAN side interface information request message of obtaining can perhaps increase new control command and realize by existing control command in the expansion UPnP IGD standard.For example, can realize by expansion existing GetExternalIPAddress () control command.
The information of described distance host comprises the IP address of described distance host, domain name, at least a in the Host Type.Described Host Type can be to use the mobile phone of wireless network, digital television server or the like.
In this step, the content difference that described gateway device can comprise according to the information of obtaining WAN side interface information request message medium-long range main frame has following several mode determine to communicate by letter with described distance host WAN side interface of usefulness.
Mode one: when the information of described distance host comprises the IP address of described distance host, described gateway device is according to the IP address search routing table of described distance host, determines communicate by letter with the described distance host WAN side interface of usefulness of described terminal according to the information of next jumping of gateway device described in the routing table.When in routing table, not finding the route of coupling, according to the information of described next jumping of gateway device of default route regulation determine the to communicate by letter WAN side interface of usefulness with described distance host.
For example, the IP address of distance host is 86.100.120.10, and reality is the professional server of IPTV (Internet Protocol Television, network protocol television).And stipulated in the routing table of gateway device with the IP address section be the distance host of 80-86 next is jumped to the IP address is the router of 80.0.0.18 when communicating by letter, the IP address of the WAN side interface of usefulness can be 80.0.0.18 so described terminal is communicated by letter with described distance host.
And for example, the IP address is the distance host of 200.10.18.11, its IP address field can't be found in routing table, and the indication of the default route of gateway device rule is communicated by letter and should next jumping be set to 20.0.0.9 with this class distance host, and the IP address of the WAN side interface of usefulness can be 20.0.0.9 so described terminal is communicated by letter with described distance host.
Mode two: when the information of described distance host comprised the Host Type of described distance host, described gateway device was according to the WAN side interface of the definite usefulness of communicating by letter with described distance host of the Host Type of described distance host.Which at this moment, preset in the gateway device according to the definite strategy that uses WAN side interface to communicate by letter of Host Type with this distance host.For example, when Host Type is IPTV Server (IPTV server), gateway device will communicate by Cable up WAN side physical interface and this main frame; And Host Type is when being Internet, and gateway communicates by the up WAN side physical interface of ADSL (Asymmetric Digital Subscriber Line, ADSL (Asymmetric Digital Subscriber Line)) and this main frame.
Mode three: when the information of described distance host comprises the domain name of described distance host, can be by name server (Domain Name Server, DNS) resolve domain name, obtain the IP address of the distance host corresponding with domain name, described then gateway device is according to the WAN side interface of the definite usefulness of communicating by letter with described distance host in the IP address of described distance host.
Particularly, obtain the IP address after, gateway device occupation mode one is judged the WAN side interface of communicating by letter with this distance host.
Mode four: the information according to described distance host sends test post to described distance host, and described gateway device is according to the WAN side interface of distance host to the definite usefulness of communicating by letter with described distance host of the response condition of described test post.
Wherein, described test post can be Ping Test message.Particularly, for example, when the information of described distance host is the type of distance host such as IPTV Server, gateway device can use each WAN side interface to send Ping Test message to Host Type as the distance host of IPTV Server respectively, which and determine to use or preferentially use WAN side interface to communicate by letter with distance host according to parameter informations such as the accessibility of each distance host and/or message time delays, for example, described gateway device can select to return the WAN side interface or the response the shortest WAN side interface of Ping Test message time of Ping Test success message.
Certainly, other mode determine to communicate by letter with the distance host WAN side interface of usefulness also can be arranged, just illustrate at this at gateway device described in concrete the application.
In this step, described gateway device can send response message to described terminal, carries the information of described WAN side ports in described response message, for example the information such as IP address of this port.
As seen from the above, by utilizing the technical scheme of the embodiment of the invention one, even under the situation that a plurality of WAN side interfaces are worked simultaneously, gateway device still can be determined the WAN side interface according to the information of obtaining in the WAN side interface information request message of terminal, thereby makes gateway device can guarantee communicating by letter of terminal and distance host under the situation that a plurality of WAN side interfaces are worked simultaneously.
Embodiment two
On the basis of as shown in Figure 1 embodiment one, for strengthening the flexibility of determining the WAN side interface for terminal, when gateway device is the WAN side interface of terminal appointment and terminal tactful inconsistent, described gateway device also can be the setting of terminal change WAN side interface according to the request of terminal, specifically can comprise: described gateway device receiving terminal sends is provided with interface command message, carrying the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message, is that described terminal is provided with the WAN side interface according to the information of carrying in the described message then.
As shown in Figure 2, the embodiment of the invention two provides a kind of method of definite interface message, comprising:
In addition, in order further to guarantee the accuracy that described gateway device is controlled terminal, in described message, go back portability and be used to represent to utilize the information of the communication protocol that described WAN side interface is suitable for, and be used for representing to utilize at least a of terminal information that described WAN side interface communicates by letter with distance host.If the follow-up WAN side interface of binding that will use of these two kinds of information representations is communicated by letter with distance host, the information of the communication protocol of the utilization that requires and the terminal information that this signal post is suitable for.
Different with embodiment one is, is the information of having been set the WAN side ports of the usefulness of communicating by letter with distance host by terminal in this embodiment, by gateway device this WAN side ports information and terminal is bound then.
As seen from the above, by utilizing the technical scheme of the embodiment of the invention two, even under the situation that a plurality of WAN side interfaces are worked simultaneously, gateway device can be that terminal is determined the WAN side interface according to the information of obtaining in the WAN side interface information request message of terminal still, thereby makes gateway device guarantee communicating by letter of terminal and distance host under the situation that a plurality of WAN side interfaces are worked simultaneously.
Embodiment three
On the basis of embodiment one or embodiment two, according to different network environments, described gateway device also can be created NAT (Network Address Translation on the WAN side interface, network address translation) rule perhaps is provided with firewall pinhole (Firewall Pinhole) on the WAN side interface.Below, describe in conjunction with specific embodiments that gateway device is how to determine the WAN side interface in detail, and how to create the NAT rule and carry out the setting of firewall pinhole.
As shown in Figure 3, the method for the embodiment of the invention three comprises the steps:
Wherein, this terminal has IGD CP (Internet Gateway Device Control Point, internet gateway device control point) function, and the IP address is IP:192.168.0.10.That describes among the implication of the information of described distance host and the embodiment one is identical, for example can comprise the IP address 86.100.120.10 of distance host in this information, type (as wireless wireless).In embodiments of the present invention, this gateway device provides two WAN side interfaces, is respectively WAN IF#1, and the IP address is: 210.70.100.12, and WAN IF#2, the IP address is: 200.23.180.27.
In embodiments of the present invention, the described WAN of obtaining side interface information request message can realize by expansion existing GetExternalIPAddress () control command.In this control command, carry the information such as IP address of the distance host of terminal appointment.The parameter of this order is as shown in table 1:
Table 1GetExternalIPAddress () parameter list
| Argument | Direction | relatedStateVariable |
| NewRemoteHost | IN | RemoteHost |
| NewExternalIPAddress | OUT | ExternalIPAddress |
Perhaps also can realize obtaining WAN side interface information request message by the mode that increases control command newly.The parameter of the control command that this increases newly can be identical with listed parameter and implication in the table 1.
Wherein, in table 1, Argument represents parameter name; Direction is used to distinguish the request message and the response message of this order, and IN represents to be sent to by terminal the command request message of gateway device, and OUT represents to be sent to by gateway device the command response message of terminal; RelatedStateVariable is used to represent the pairing state variable of this parameter, and for example RemoteHost represents the information of distance host, and ExternalIPAddress represents the information of WAN side interface.Perhaps, in concrete the application, also can not comprise relatedStateVariable information.
In table 1, NewRemoteHost is the parameter that terminal is carried in this command request message, is used to describe the information (IP address and/or domain name etc.) of distance host;
NewExternalIPAddress is the parameter that gateway device carries in this command response message, be used for describing the IP address of employed WAN side interface of communicating by letter with the RemoteHost of request message appointment.
Step 32, described gateway device are according to the information of described distance host determine to communicate by letter with the described distance host WAN side interface of usefulness.
Concrete mode can be with reference to a kind of arbitrarily mode among the embodiment one.For example adopt the mode a period of time among the embodiment one, described gateway device can be according to the IP address search routing table of described distance host, WAN side interface according to the definite usefulness of communicating by letter with described distance host of the information of next jumping of gateway device described in the routing table, the WAN side interface of determining in this manner in this hypothesis is WAN IF#1, and the IP address is: 210.70.100.12.
In home network based on IPv4 (Internet Protocol Version4, network protocol version 4) because various terminals have been assigned with private network IP address, thereby can't serviced device or distance host have access to.Therefore, gateway device should be able to be opened port mapping on the WAN of appointment side interface, so that terminal can be had access to by remote server or distance host.In embodiments of the present invention, on the WAN side interface, create the NAT rule by step 34-35 just, realized port mapping.
Wherein, described increase port mapping command messages can be realized by expanding existing UPnP IGD control command or newly-increased control command.
For example, can expand AddPortMapping ()/AddAnyPortMapping () order.Wherein, described AddPortMapping () order is as shown in table 2, and AddAnyPortMapping () order is as shown in table 3.
Table 2AddPortMapping () parameter list
| Argument | Direction | relatedStateVariable |
| NewRemoteHost | IN | RemoteHost |
| NewExternalInterface | IN | ExtenallInterface |
| NewExternalPort | IN | ExternalPort |
| NewProtocol | IN | PortMappingProtocol |
| NewInternalPort | IN | InternalPort |
Table 3AddAnyPortMapping () parameter list
| Argument | Direction | relatedStateVariable |
| NewRemoteHost | IN | RemoteHost |
| NewExternalInterface | IN | ExtenallInterface |
| NewExternalPort | IN | ExternalPort |
| NewProtocol | IN | PorrMappingProtocol |
| NewInternalPorr | IN | InternalPorr |
| NewReservedPort | OUT | ExternalPort |
In table 2 and table 3, identical among the implication that Argument, Direction and relatedStateVariable represent and the embodiment.
Parameter declaration in table 2 and the table 3 is as follows:
NewRemoteHost is the parameter that terminal is carried in this command request message, be used to describe the information (IP address and/or domain name etc.) of distance host; In table 2 and table 3, newly-increased parameter is ExternalInterface, and in order to specify in the creating NAT rule on which WAN side interface, this parameter can assignment be the IP address that needs the WAN side interface of establishment NAT rule.
NewExternalPort is the parameter that terminal is carried in this command request message, be used to describe the port of the gateway that NAT rule to be created bound.
NewProtocol is the parameter that terminal is carried in this command request message, be used to describe the protocol type of NAT application of rules to be created, for example UDP or TCP.
NewInternalPort is the parameter that terminal is carried in this command request message, be used to describe the port of the terminal that NAT rule to be created bound.
When creating the failure of NAT rule, gateway device will return the message that makes a mistake to terminal.Other parameters are followed successively by: the port after the mapping, agreement (TCP:Transmission Control Protocol, transmission control protocol or UDP:User Datagram Protocol, User Datagram Protoco (UDP)), internal port before the mapping, the home address before the mapping.
By contrast table 2 and table 3 as can be seen, newly-increased in table 3 have a NewReservedPort parameter.By this parameter, when creating the NAT rule on the WAN of terminal appointment side ports, if this port takies or belongs to reserved port, then gateway device will specify another unappropriated port to shine upon.Compare with the AddPortMapping () order that utilizes table 2, utilize AddAnyPortMapping () order to increase and create the flexibility of NAT rule and improved the success rate that NAT creates.
As shown in Figure 3, to utilize AddPortMapping () order is example, structure according to this order shown in the table 3, the structure of this order is AddPortMapping (86.100.120.10,210.70.100.12,3000, UDP, 2000,192.168.0.10 ...), wherein 86.100.120.10 represents the IP address of distance host, 210.70.100.12 expression needs the IP address of the WAN side interface of establishment NAT rule, 3000 expression outer end slogans, the protocol type that UDP (User Datagram Protocol, User Datagram Protoco (UDP)) expression is adopted, 192.168.0.10 the IP address of expression terminal, 2000 expression inside end slogans.This order is by after the gateway device successful execution, promptly generated a NAT rule in the gateway device: promptly when the IP address be that the distance host of 86.100.120.10 is to gateway device when to send destination interface be 3000 UDP message, it is 192.168.0.10 that gateway device can mail to this message the address, and port is 2000 terminal.
Step 35, described gateway device need be created the network address translation rule on the WAN side interface of establishment port mapping according to described message described.Like this, when this distance host needs the active access terminal, need send message to gateway device 210.70.100.12:3000 interface, gateway device will be forwarded to this message (192.168.0.10:2000 interface) on the terminal in view of the above.
Step 37, terminal send registration public network IP address message (Register Public IP Address) to distance host, IP address and port information after in described message, carrying mapping, be 210.70.100.12:3000 in this example, this IP address and port are destination address and the port that distance host initiatively should use when terminal sends message.IP address information after terminal will be shone upon sends to the employed agreement of distance host different and different according to terminal and main-machine communication agreement.
Description by embodiment three in embodiments of the present invention, not only makes gateway device to determine the WAN side interface for terminal as can be seen, can also create the NAT rule on the WAN of terminal appointment side interface.
Embodiment four
At IPv6 (Internet Protocol Version6, network protocol version six) under the network condition, Network Management Equipment should be able to be provided with (opening or closing etc.) fire compartment wall Pinhole (" aperture " or " pin hole ") on the WAN of appointment side interface, so that terminal can be accepted the visit of remote server and main frame.In embodiments of the present invention, be implemented on the WAN side interface of appointment by following process firewall pinhole is set.
As shown in Figure 4, the method for the embodiment of the invention four comprises the steps:
Step 41-43, with reference to the description of step 31-33.
In above-mentioned steps 41-43, different with embodiment three is, terminal in embodiments of the present invention, and the WAN side interface that gateway device provides, the IP address of distance host are the address of IPv6, and wherein, the IP address of terminal is 2012:32d:d::3.Gateway device provides two WAN side interfaces, is respectively WAN IF#1, and the IP address is: 2121:abd:e::1, and WAN IF#2, the IP address is: 2221:dab:b::3; The IP address of distance host is 2002:abb:d::1.
In embodiments of the present invention, by said process, gateway device is that the WAN side interface that terminal is determined is: WAN IF#1, the IP address is: 2121:abd:e::1.
Step 44, described gateway device receive that described terminal sends is provided with the firewall pinhole command messages.Simultaneously, in described message, go back the WAN side interface information that portability need be provided with firewall pinhole.
The described firewall pinhole command messages that is provided with can be realized by expanding existing UPnP IGD control command or newly-increased control command.Described setting can comprise opens firewall pinhole, closes firewall pinhole etc.
To open firewall pinhole is example, in embodiments of the present invention, realizes opening the firewall pinhole command messages with newly-increased AddPinhole () order, and its parameter is as shown in table 4:
| Argument | Direction | relatedStateVariable |
| RemoteHost | IN | A_ARG_TYPE_IPv6Address |
| RemotePort | IN | A_ARG_TYPE_Port |
| ExternalInterface | IN | ExtenallInterface |
| InternalClient | IN | A_ARG_TYPE_IPv6Address |
| InternalPort | IN | A_ARG_TYPE_Port |
| Protocol | IN | A_ARG_TYPE_Protocol |
| LeaseTime | IN | A_ARG_TYPE_LeaseTime |
| UniqueID | OUT | A_ARG_TYPE_UniqueID |
As above shown in the table, parameter newly-increased in this order is ExternalInterface, opens fire compartment wall Pinhole in order to specify gateway device on which WAN side interface, and this parameter can assignment be the IP address (for the IPv6 address) of WAN side interface.Other parameters are respectively:
RemoteHost: letting pass in order to the message of specifying fire compartment wall for which IP address to send, can assignment be the IP address or the domain name of distance host.
RemotePort: letting pass in order to the message of specifying fire compartment wall for which port of which distance host to send, can assignment be the port of distance host.If this parameter assignment is empty, then represent to be transmitted to inside terminals by fire compartment wall from the message of the IP address of top RemoteHost parameter appointment; If this parameter assignment is integer (for example 4000), represent that then distance host must just be let pass by the port 4000 civilian gateway of transmitting messages.
InternalClient: passing through in order to the message of specifying fire compartment wall to allow to be sent to which implicit IP address, can assignment be the IPv6 address of inside terminals.
InternalPort: passing through in order to the message of specifying fire compartment wall to allow to be sent to which port of inside terminals, can assignment be the port numbers of inside terminals.If this parameter assignment is empty, then the expression message that is sent to the IP address of top InternalClient parameter appointment can be transmitted to this terminal by fire compartment wall; If this parameter assignment is integer (for example 3000), represent that then No. 3000 ports of terminal that incoming message must be sent to the IP address of top parameter appointment can be let pass by fire compartment wall.
Protocol: the agreement that the above-mentioned fire compartment wall Pinhole that expression is opened is suitable for can assignment be TCP, UDP or other agreements.
LeaseTime: the time of above-mentioned fire compartment wall Pinhole is opened in expression, can assignment be integer (for example 120) unit for second.
UniqueID: after gateway device is accepted the order of inside terminals unlatching fire compartment wall Pinhole, the ID of this Pinhole of unique identification that in response message, carries.
As shown in Figure 4, in embodiments of the present invention, the form of AddPinhole () is AddPinhole (2002:abb:d::1,4000,2121:abd:e::1,2012:32d:d::3,3000, UDP, 120), expression require gateway device for the IP address be the distance host of 2002:abb:d::1 from port 4000, the message of udp protocol of 3000 ports that mails to the IP address and be the terminal of 2012:32d:d::3 let pass (being transmitted to terminal).And effectively duration is 120s, promptly no longer lets pass behind the 120s.Terminal can use the UniqueID of this Pinhole of unique identification that gateway device returns to come follow-up renewal or delete this Pinhole.
Step 45, gateway device are opened fire compartment wall according to described message at the WAN side interface that described need are provided with firewall pinhole, and are returned response message to terminal.The identification information that wherein in this response message, can comprise this firewall pinhole, for example identification information of representing with 201009081745001 forms.
According to described message, described gateway device is the message of the distance host of 2002:abb:d::1 from port 4000 for the IP address, in the IP address is to open firewall pinhole on 3000 ports of terminal of 2012:32d:d::3, and the term of validity is 120s.
Step 46, terminal send message to described distance host, wherein carry the follow-up rule (being the specifying information of Pinhole) that should follow with terminal communication institute of distance host, so that distance host is not stopped by gateway firewall to terminal transmission message.
For example, can send notice connection message Inform contact information in embodiments of the present invention, the concrete form of this message is (4000,2121:abd:e::1,3000, UDP, 120s), being used to notify the IP address is that the distance host of 2121:abd:e::1 will not stopped by gateway firewall by the message that 4000 ports send to these terminal 3000 ports, and the term of validity is 120s, and this distance host and communication between terminals agreement are UDP.
By embodiment four as can be seen, in embodiments of the present invention, not only make gateway device to determine the WAN side interface, can also on the WAN of terminal appointment side interface, firewall pinhole be set for terminal.
Embodiment five
As shown in Figure 5, the method for the embodiment of the invention five comprises:
Step 51, gateway device receiving terminal send is provided with interface command message.
In embodiments of the present invention, the described interface command message that is provided with can realize by expanding existing UPnP IGD control command or increasing new control command.Be example with the SetWANInterface () that increases newly for example, the parameter of this order is as shown in table 5:
Table 5SetWANInterface () parameter list
| Argument | Direction | relatedStateVariable |
| NewExternalIPAddress | IN | ExternalIPAddress |
| NewInternalClient | IN | InternalClient |
| NewRemoteHost | IN | RemoteHost |
| NewProtocol | IN | Protocol |
As above shown in the table, the meaning of each parameter is respectively:
ExternalIPAddress: the parameter that must carry in this message is used to specify gateway device and uses which WAN side interface to carry out correspondence with foreign country.
InternalClient: carry-on parameter in this message, which terminal the correspondence with foreign country that is used to further specify the WAN side interface that uses first parameter appointment is applicable to.This parameter value can be for the IP address of terminal, domain name, UUID information such as (Universally Unique Identifier, general unique identifiers) one or more.
RemoteHost: the parameter that must carry in this message, which remote equipment the correspondence with foreign country that is used to further specify the WAN side interface that uses first parameter appointment is applicable to.This parameter value can be for information such as the IP address of distance host, domain name, equipment/types of service one or more.
Protocol: carry-on parameter in this message, which kind of agreement the correspondence with foreign country that is used to further specify the WAN side interface that uses first parameter appointment is applicable to.This parameter value can be for variety of protocols such as TCP, UDP, HTTP, FTP, RTP one or more.
For example set ExternalIPAddress=210.70.10.12, InternalClient=192.168.0.10, RemoteHost=86.100.120.10, expression requires gateway device to use IP outwards to send from the address to " 192.168.0.10 ", mail to any message of address for " 86.100.120.10 " for the WAN side interface of " 210.70.10.12 ".
Step 52, described gateway device are bound described WAN side interface according to the information in the described message.
Equally, also can create the NAT rule on the WAN of terminal appointment side interface in this embodiment, detailed process can be with reference to step 34-37.
By this embodiment, realized determining the WAN side interface for terminal, the communication bindings of this terminal and particular remote main frame on specific physical connection, has also been realized creating the NAT rule simultaneously on the WAN of terminal appointment side interface.
Embodiment six
As shown in Figure 6, the method for the embodiment of the invention six comprises:
Step 61-63, with reference to the description of step 51-53.
Under the IPv6 network condition, in embodiments of the present invention, also can be implemented on the WAN side interface of appointment firewall pinhole is set, detailed process can be with reference to step 44-46.
By this embodiment, realized determining the WAN side interface for terminal, the communication bindings of this terminal and particular remote main frame on specific physical connection, has also been realized on the WAN of terminal appointment side interface firewall pinhole being set simultaneously.
Embodiment seven
As shown in Figure 7, the embodiment of the invention also provides a kind of gateway device, comprising: information receiving unit 71, and what be used for that receiving terminal sends obtains wide area network WAN side interface information request message, the information of carrying distance host in described message; Interface determining unit 72 is used for according to communicate by letter with the described distance host WAN side interface of usefulness of the information of described distance host; Information transmitting unit 73 is used for the information of described WAN side interface is sent to described terminal.
Wherein, that describes among the information of described distance host and the preceding method embodiment is identical, can comprise the IP address of described distance host, domain name, at least a in the Host Type.
The content difference that comprises according to the information of the distance host of terminal appointment, described interface determining unit 72 can specifically be used for the communicating by letter WAN side interface of usefulness with described distance host, specifically can be by searching routing table, determining according to modes such as distance host type or domain name, transmission test posts, concrete confirmation method can not repeat them here referring to the relevant argumentation in the foregoing description.
Except determining for terminal the WAN side interface that described gateway device also can be created the NAT rule on the WAN of terminal appointment side interface, firewall pinhole perhaps is set.
As shown in Figure 8, under the IPv4 network condition, described information receiving unit 71 also is used for: receive the increase port mapping command messages that described terminal sends, carry the information of the WAN side interface that needs establishment network address translation NAT rule in described increase port mapping command messages; At this moment, described gateway device also can comprise: rule creation unit 74, be used on described WAN side interface, creating network address translation NAT rule according to described increase port mapping command messages and the described information that needs the WAN side interface of establishment network address translation rule.
Perhaps, as shown in Figure 8, under the IPv6 network condition, described information receiving unit 71 also is used for: what receive that described terminal sends is provided with the firewall pinhole command messages, carries the WAN side interface information that firewall pinhole need be set in the firewall pinhole command messages described the setting; At this moment, described gateway device also can comprise: firewall pinhole is provided with unit 75, is used for the WAN side interface information that firewall pinhole command messages and described need are provided with firewall pinhole is set at described WAN side interface fire compartment wall is set according to described.
Wherein said rule creation unit 74 and firewall pinhole are provided with the operation principle of unit 75 can be with reference to the description among the preceding method embodiment.
When the WAN side interface of determining when terminal strategy and gateway device is inconsistent, described information receiving unit 71 is used for also that receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message.At this moment, as shown in Figure 8, described gateway device also can comprise: interface is provided with unit 76, and being used for according to the described interface command message that is provided with is that described terminal is provided with the WAN side interface.
According to the gateway device of the embodiment of the invention, can the WAN side interface be set for terminal, and can on the WAN of terminal appointment side interface, create the NAT rule or firewall pinhole is set.
As shown in Figure 9, the embodiment of the invention also provides a kind of gateway device, comprise: information receiving unit 91, what be used for that receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message; Interface binding unit 92 is used for binding described WAN side interface according to the information of the WAN side interface of the usefulness of communicating by letter with described distance host of the information of the distance host of described appointment and appointment.
Except determining for terminal the WAN side interface that described gateway device also can be created the NAT rule on the WAN of terminal appointment side interface, firewall pinhole perhaps is set.
As shown in figure 10, under the IPv4 network condition, described information receiving unit 91 also is used for, and receives the increase port mapping command messages that described terminal sends, and carries the information of the WAN side interface that needs establishment network address translation NAT rule in described increase port mapping command messages; At this moment, described gateway device also can comprise: rule creation unit 93, be used on described WAN side interface, creating network address translation NAT rule according to described increase port mapping command messages and the described information that needs the WAN side interface of establishment network address translation rule.
Perhaps, as shown in figure 10, under the IPv6 network condition, described information receiving unit 91 also is used for, what receive that described terminal sends is provided with the firewall pinhole command messages, carries the WAN side interface information that firewall pinhole need be set in the firewall pinhole command messages described the setting; At this moment, described gateway device also can comprise: firewall pinhole is provided with unit 94, is used for the WAN side interface information that firewall pinhole command messages and described need are provided with firewall pinhole is set at described WAN side interface fire compartment wall is set according to described.
Wherein said rule creation unit 93 and firewall pinhole are provided with the operation principle of unit 94 can be with reference to the description among the preceding method embodiment.
According to the gateway device of the embodiment of the invention, can be terminal binding WAN side interface, and can on the WAN of terminal appointment side interface, create the NAT rule or firewall pinhole is set.
Embodiment eight
In addition, the embodiment of the invention also provides a kind of system of definite interface message, and this system can comprise as Fig. 7 or gateway device and terminal shown in Figure 8.
In addition, the embodiment of the invention also provides a kind of system of definite interface message, and this system can comprise as Fig. 9 or gateway device and terminal shown in Figure 10.
In sum, the embodiment of the invention is determined the method and apparatus of interface message, at first obtain wide area network WAN side interface information request message by what the gateway device receiving terminal sent, in described message, carry the information of the distance host of described terminal appointment, then by gateway device according to described message determine the to communicate by letter WAN side interface of usefulness with described distance host, the information of described WAN side interface is sent to described terminal.As seen from the above, even under the situation that a plurality of WAN side interfaces are worked simultaneously, gateway device can be that terminal is determined the WAN side interface according to the WAN side interface information request message of obtaining of terminal still, thereby can make gateway device guarantee communicating by letter of terminal and distance host under the situation that a plurality of WAN side interfaces are worked simultaneously.
The described method of the embodiment of the invention, equipment and system not only can be applied in the home network based on UPnP IGD standard, can also be applied in other household network standards, IGRS (IGRS) (Intelligent Grouping and Resource Sharings for example, information equipment resource-sharing cooperation with service standard, the good standard of e family, DLNA standard etc.In addition, because networking scale and home network are more or less the same, the scheme of the embodiment of the invention also can be applied in small business's network.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (17)
1. the method for a definite interface message is characterized in that, comprising:
Receiving terminal sends obtains wide area network WAN side interface information request message, the information of carrying distance host in described message;
WAN side interface according to the definite usefulness of communicating by letter with described distance host of the information of described distance host;
The information of described WAN side interface is sent to described terminal.
2. method according to claim 1 is characterized in that, the definite WAN side interface of communicating by letter usefulness with described distance host of described information according to described distance host comprises:
When the information of described distance host comprises the IP address of described distance host, according to the IP address search routing table of described distance host, according to the information of next jumping in the routing table determine the to communicate by letter WAN side interface of usefulness or according to the WAN side interface of the definite usefulness of communicating by letter with described distance host of information of next jumping of default route regulation with described distance host; Perhaps
When the information of described distance host comprises the Host Type of described distance host, according to the WAN side interface of the definite usefulness of communicating by letter with described distance host of the Host Type of described distance host; Perhaps
When the information of described distance host comprises the domain name of described distance host, resolve domain name, obtain the IP address of the distance host corresponding, according to the WAN side interface of the definite usefulness of communicating by letter with described distance host in the IP address of described distance host with domain name; Perhaps
Information according to described distance host sends test post to described distance host, according to the WAN side interface of described distance host to the definite usefulness of communicating by letter with described distance host of the response condition of described test post.
3. method according to claim 1 and 2, after the information with described WAN side interface sent to described terminal, described method also comprised:
Receive the increase port mapping command messages that described terminal sends, in described increase port mapping command messages, carry the information of the WAN side interface that needs establishment network address translation NAT rule;
According to described increase port mapping command messages and the described information that needs the WAN side interface of establishment network address translation rule, on described WAN side interface, create the network address translation rule.
4. method according to claim 1 and 2 is characterized in that, after the information with described WAN side interface sent to described terminal, described method also comprised:
What receive that described terminal sends is provided with the firewall pinhole command messages, carries the WAN side interface information that firewall pinhole need be set in the firewall pinhole command messages described the setting;
The WAN side interface information that firewall pinhole command messages and described need are provided with firewall pinhole is set fire compartment wall is set according to described at described WAN side interface.
5. method according to claim 1 and 2 is characterized in that, after described information with described WAN side interface sent to described terminal, described method also comprised:
Receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message;
According to the described interface command message that is provided with the WAN side interface is set.
6. the method for a definite interface message is characterized in that, comprising:
Receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message;
Information according to the WAN side interface of the usefulness of communicating by letter with described distance host of the information of the distance host of described appointment and appointment is bound described WAN side interface.
7. method according to claim 6 is characterized in that, also comprises described the setting in the interface command message:
The information of the communication protocol that is suitable for when being used to represent to utilize described WAN side interface to communicate by letter with distance host and/or be used to is represented the terminal information that can utilize described WAN side interface to communicate by letter with distance host.
8. according to claim 6 or 7 described methods, after the information of the WAN side interface of the usefulness of communicating by letter with described distance host of the information of described distance host according to described appointment and appointment was bound described WAN side interface, described method also comprised:
Receive the increase port mapping command messages that described terminal sends, in described increase port mapping command messages, carry the information of the WAN side interface that needs establishment network address translation NAT rule;
According to described increase port mapping command messages and the described information that needs the WAN side interface of establishment network address translation rule, on described WAN side interface, create the network address translation rule.
9. according to claim 6 or 7 described methods, after the information of the WAN side interface of the usefulness of communicating by letter with described distance host of the information of described distance host according to described appointment and appointment was bound described WAN side interface, described method also comprised:
What receive that described terminal sends is provided with the firewall pinhole command messages, carries the WAN side interface information that firewall pinhole need be set in the firewall pinhole command messages described the setting;
The WAN side interface information that firewall pinhole command messages and described need are provided with firewall pinhole is set fire compartment wall is set according to described at described WAN side interface.
10. a gateway device is characterized in that, comprising:
Information receiving unit, what be used for that receiving terminal sends obtains wide area network WAN side interface information request message, the information of carrying distance host in described message;
The interface determining unit is used for the WAN side interface according to the definite usefulness of communicating by letter with described distance host of the information of described distance host;
Information transmitting unit is used for the information of described WAN side interface is sent to described terminal.
11. gateway device according to claim 10 is characterized in that,
Described interface determining unit specifically is used for, when the information of described distance host comprises the IP address of described distance host, according to the IP address search routing table of described distance host, according to the information of next jumping in the routing table determine the to communicate by letter WAN side interface of usefulness or according to the WAN side interface of the definite usefulness of communicating by letter with described distance host of information of next jumping of default route regulation with described distance host; Perhaps
Described interface determining unit specifically is used for, when the information of described distance host comprises the Host Type of described distance host, according to the WAN side interface of the definite usefulness of communicating by letter with described distance host of the Host Type of described distance host; Perhaps
Described interface determining unit specifically is used for, when the information of described distance host comprises the domain name of described distance host, resolve domain name, obtain the IP address of the distance host corresponding, according to the WAN side interface of the definite usefulness of communicating by letter with described distance host in the IP address of described distance host with domain name; Perhaps
Described interface determining unit specifically is used for, and sends test post according to described message to described distance host, according to the WAN side interface of described distance host to the definite usefulness of communicating by letter with described distance host of the response condition of described test post.
12. according to claim 10 or 11 described gateway devices, it is characterized in that,
Described information receiving unit also is used for: receive the increase port mapping command messages that described terminal sends, carry the information of the WAN side interface that needs establishment network address translation NAT rule in described increase port mapping command messages;
Described gateway device also comprises:
The rule creation unit is used for creating the network address translation rule according to described increase port mapping command messages and the described information that needs the WAN side interface of establishment network address translation rule on described WAN side interface.
13. according to claim 10 or 11 described gateway devices, it is characterized in that,
Described information receiving unit also is used for: what receive that described terminal sends is provided with the firewall pinhole command messages, carries the WAN side interface information that firewall pinhole need be set in the firewall pinhole command messages described the setting;
Described gateway device also comprises:
Firewall pinhole is provided with the unit, is used for the WAN side interface information that firewall pinhole command messages and described need are provided with firewall pinhole is set at described WAN side interface fire compartment wall is set according to described.
14. according to claim 10 or 11 described gateway devices, it is characterized in that,
Described information receiving unit is used for also that receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message;
Described gateway device also comprises: interface is provided with the unit, and being used for according to the described interface command message that is provided with is that described terminal is provided with the WAN side interface.
15. a gateway device is characterized in that, comprising:
Information receiving unit, what be used for that receiving terminal sends is provided with interface command message, carries the information of WAN side interface of the usefulness of communicating by letter with described distance host of the information of distance host of appointment and appointment in described message;
Interface binding unit is used for binding described WAN side interface according to the information of the WAN side interface of the usefulness of communicating by letter with described distance host of the information of the distance host of described appointment and appointment.
16. gateway device according to claim 15 is characterized in that, also comprises:
Described information receiving unit also is used for, and receives the increase port mapping command messages that described terminal sends, and carries the information of the WAN side interface that needs establishment network address translation NAT rule in described increase port mapping command messages;
Described gateway device also comprises:
The rule creation unit is used for creating network address translation NAT rule according to described increase port mapping command messages and the described information that needs the WAN side interface of establishment network address translation rule on described WAN side interface.
17. according to claim 15 or 16 described gateway devices, it is characterized in that,
Described information receiving unit also is used for, and what receive that described terminal sends is provided with the firewall pinhole command messages, carries the WAN side interface information that firewall pinhole need be set in the firewall pinhole command messages described the setting;
Described gateway device also comprises:
Firewall pinhole is provided with the unit, is used for the WAN side interface information that firewall pinhole command messages and described need are provided with firewall pinhole is set at described WAN side interface fire compartment wall is set according to described.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011100031468A CN102104512A (en) | 2011-01-07 | 2011-01-07 | Method and equipment for determining interface information |
| PCT/CN2011/079161 WO2012092780A1 (en) | 2011-01-07 | 2011-08-31 | Method and device for determining interface information |
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| CN2011100031468A CN102104512A (en) | 2011-01-07 | 2011-01-07 | Method and equipment for determining interface information |
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Application publication date: 20110622 |