CN102209011A - Method for establishing connection with multi-homed terminal and system thereof - Google Patents
Method for establishing connection with multi-homed terminal and system thereof Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/005—Multiple registrations, e.g. multihoming
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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
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/677—Multiple interfaces, e.g. multihomed nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/69—Types of network addresses using geographic information, e.g. room number
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Abstract
The invention discloses a method for establishing connection with a multi-homed terminal and a system thereof. The method comprises the following steps: the identities of terminals and the mapping relations of one or more positions of the terminals are stored in a mapping server ILMS-FE/ILMU-FE; a first terminal queries and obtains the IP address of the mapping server ILMS-FE/ILMU-FE through a domain name server DNS; the first terminal sends a request message of mapping update to the mapping server to obtain one or more positions namely IP addresses of a second terminal; according to the obtained position the first terminal establishes connection with the second terminal. Through obtaining the position used by the multi-homed terminal, connection with the multi-homed terminal is established according to the position. Thus the problem that a terminal which is a multi-homed terminal can not be used in an NGN network is solved.
Description
Technical field
The present invention relates to the communications field, the method and system that connects in particular to a kind of many caves terminal.
Background technology
In each of current internet layer structure, except physical layer, each layer protocol entity all has the name space of oneself, be respectively MAC (Media Access Control, the medium access control) address of link layer, the IP address of network layer, the IP address of transport layer and the domain name of port numbers and application layer.In these name spaces, MAC Address is only required in subnet unique, and that port numbers is only required in main frame inside is unique, therefore, has two important global namespace spaces---IP address and domain name in the internet.Realize resolving by DNS (Domain Name Server, name server) in the middle of domain name and the IP address.In such name space structure, the IP address has dual-use function, both as the station location marker of communication terminal host network interface in network topology of network layer, again as the identify label of transport layer host network interface.
Do not consider the situation that main frame moves at the beginning of the TCP/IP design, but, along with NGN (Next Generation Networks, next generation network) development, the problem of user mobility (mobility) and many caves of main frame property (multihoming) is more and more general, and the semanteme overload defective of this IP address is obvious day by day.For example, when the IP address of main frame changed, not only route will change, and the identify label of communication terminal main frame also changes.Variation for route is an acceptable, but the variation of host identities sign but can cause using and the interruption that is connected.
Mobility and many caves property for support terminal, better support the continuity of conversation, industry has proposed IPSPLIT (ID/locator separation in NGN, identify label separates with the position in the next generation network) technology, the identify label of hostid (Host ID) as main frame of IPSPLIT technology, the hostid whole world identifies every main frame that is connected to Internet uniquely.Its objective is transport layer and network layer are separated, move method with many hosts for Internet provides the main frame of a safety; Simultaneously, this technology also provides the host identification NameSpace of an encryption, more easily communicating pair is authenticated, thereby realizes safety, network system trusty.In the IPSPLIT network, the route position of communication terminal main frame in network topology only represented in the IP address.The IPSPLIT technology solves the semanteme overload problem of IP address, and the dual-use function of IP address is separated, realize to many mobility, many locals property, IP address dynamically heavily distribute and the heterogeneous networks zone between the support of problems such as exchanging visit.
The architectural framework of IPSPLIT comprises that network insertion control section, identify label separate mapping part, resource control part, hop, service control function part and user terminal/user network part with position separating controlling part, identify label with the position.Wherein, the network insertion control section provides functions such as registration, Authentication Authorization, address assignment, parameter configuration, location management for the user terminal/user network that inserts the NGN network.
For example, referring to ITU-T NGN schematic network structure shown in Figure 1, comprise network attachment controlled function (Network Attachment Control Functions in this network, abbreviate NACF as), identify label and position separating controlling function (Id-loc-controlfunctions, abbreviate ILCF as), be used to carry out the storage of ID/LOC (its corresponding IP address just) mapping and dynamically update; Resource control part is based on strategy and network resource status, admit functions such as control, resource reservation when finishing user terminal/user network access network, (the Resource and AdmissionControl Functions of the resource accommodating control function among this figure for example, abbreviate RACF as), access management function among the NGN (Accessmanagement Functions).Transfer function (finishing transmission of Information), for example transfer function (Transport Functions) in the ITU-TNGN network.Service control function (ServiceControl Functions) part belongs to the part in the operation layer (Service stratum), on professional level, finish functions such as registration, Authentication Authorization, resource control, for example service terminal authentication and authentication process in the ITU-TNGN network.Terminal user function provides network access facility to the user, for example UE (User Equipment, subscriber equipment) in the ITU-T NGN network.
What Host Based IPSPLIT used is HIP (Node Identity Protocol) agreement, and the HIP agreement is an agreement end to end, referring to Fig. 2, connects the schematic diagram of the process of setting up for the main frame that adopts the HIP agreement.Adopt the main frame of HIP agreement to connect to set up process and comprise: when the initiator will initiate HIP to the side of response when connecting, main frame is earlier at RVS (RendezvousServer, the RVS server) the IP address and the host identification Node ID of registration oneself in, wherein, Node ID-I refers to initiator's identify label, and Node ID-R refers to the identify label of the side of response.The initiator obtains the address of the RVS server at place, response side by query directory server DNS.The initiator sends authentication bag I1 to the RVS server, the current IP address of main frame, the RVS whois lookup side of response, and RVS transmits corresponding authentication bag I1 and delivers to response side, and it is response message that R1 message is replied by response side.Unwrap the beginning from the 3rd,, can in basic exchange, carry the transmission data as I2 message among the figure and R2 message.
In the prior art: the end host among the NGN can not use a plurality of IP address simultaneously, and promptly the terminal among the NGN is not supported many caves property, therefore, when the terminal among the NGN moves, can not guarantee the continuity of conversing.
Summary of the invention
Main purpose of the present invention is to provide a kind of many caves method and system that terminal connects, to address the above problem at least.
According to an aspect of the present invention, a kind of many caves method that terminal connects is provided, the identify label of this method storage terminal on mapping server ILMS-FE/ILMU-FE and the mapping relations of the one or more positions of terminal, first terminal obtain the IP address of mapping server ILMS-FE/ILMU-FE by the domain name server (DNS) inquiry; First terminal sends the map updating request message to mapping server, and the one or more positions that obtain second terminal are the IP address; First terminal connects according to the position and second terminal that obtain.
According to a further aspect in the invention, a kind of many caves system that terminal connects is provided, comprise: first terminal, mapping server and second terminal, first terminal is used for the IP address by the described mapping server ILMS-FE/ILMU-FE of domain name server (DNS) inquiry acquisition; Send the map updating request message to mapping server, the one or more positions that obtain second terminal are the IP address; Connect according to the position and described second terminal that obtain; Mapping server ILMS-FE/ILMU-FE is used for the identify label of storage terminal and the mapping relations of the one or more positions of terminal; Second terminal, the one or more positions that are used for selecting offer mapping server; And use the position and first terminal selected to connect.
According to the present invention, by obtaining the IP address of many caves terminal, connect according to this IP address and opposite end, in the time of can solving terminal and be many caves terminal, the problem that can not in the NGN network, use; Because use the identify label of identify label as main frame, simultaneously when terminal moves, thereby guaranteed the continuity of conversing, strengthened the serviceability of NGN network.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the ITU-T NGN schematic network structure according to correlation technique;
Fig. 2 is the schematic diagram that connects the process of setting up according to the main frame of the employing HIP agreement of correlation technique;
Fig. 3 is the method flow diagram that the many caves terminal according to the embodiment of the invention connects;
Fig. 4 is the functional framework schematic diagram according to the IPSPLIT system of the embodiment of the invention 1;
Fig. 5 is the method flow diagram that the many caves terminal according to the embodiment of the invention 1 connects;
Fig. 6 is the method flow diagram that the many caves terminal according to the embodiment of the invention 2 connects; And
Fig. 7 is the structured flowchart of the system that connects of the many caves terminal according to the embodiment of the invention 3.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention is in the NGN network, use the IPSPLIT technology,, transport layer and network layer are separated with the identify label of identification identifier (Host ID) as main frame, when local terminal and distant terminal connect, search distant terminal by the identify label of distant terminal.At distant terminal is the situation of many caves terminal, present embodiment provides a kind of many caves method that terminal connects, the identify label of this method storage terminal on mapping server ILMS-FE/ILMU-FE and the mapping relations of the one or more positions of terminal, referring to Fig. 3, this method may further comprise the steps:
Step 302, first terminal obtain the IP address of mapping server ILMS-FE/ILMU-FE by the domain name server (DNS) inquiry;
Step 304, first terminal sends the map updating request message to mapping server, and the one or more positions that obtain second terminal are the IP address;
Step 306, first terminal connects according to the position and second terminal that obtain.
Above-mentioned mapping server is second end side, this mapping server can comprise ILMS-FE (Id-Loc-split Mapping Storage Function Entity, identify label separates mapping memory function entity with the position) or ILMU-FE (Id-Loc-split MappingUpdate Function Entity, identify label separates the map updating functional entity with the position), on mapping server, store the identify label of second terminal and the mapping relations of its one or more positions; For example, the identify label of second terminal and the mapping relations of one or more positions, mapping server can determine according to these mapping relations whether second terminal is many caves terminal, when second terminal is many caves terminal, it is the IP address that mapping server need obtain one or more positions that second terminal selects according to the method described above, the position of using as with first terminal communication time.
First terminal and second terminal be corresponding same mapping server simultaneously also, for the situation of the same mapping server of correspondence, also is applicable to said method.Above-mentioned first terminal and second terminal had been finished registration and verification process before connecting.
Present embodiment is the IP address by the one or more positions that obtain distant terminal from mapping server, and connects according to this position and distant terminal, in the time of can solving distant terminal and be many caves terminal, and the problem that can not in the NGN network, use; When terminal moves,, thereby guaranteed the continuity of conversation simultaneously, strengthened the serviceability of NGN network because use the identify label of identify label as main frame.
Below by specific embodiment the technical scheme that the embodiment of the invention provides is described in detail.
Embodiment 1
Present embodiment provides a kind of many caves method that terminal connects, and this method referring to Fig. 4, is the functional framework schematic diagram of IPSPLIT system based on the IPSPLIT technology, and wherein, NACF comprises following functional entity:
Transport layer user's configuration feature entity (Transport User Profile FunctionalEntity abbreviates TUP-FE as) is used for being responsible for preserving the user profile relevant with transportation level;
Authentication and authentication functions entity (Transport Authentication andAuthorization Functional Entity, abbreviate TAA-FE as), be used to provide transport layer authentication and authentication function, carry out authentication and authorization check based on the network insertion of user's information;
Access management function entity (Access Management Functional Entity abbreviates AM-FE as) is used for conversion is translated in Client-initiated network insertion request, and the request of distributing IP address and other network configuration parameters is sent to NAC-FE;
Transport layer location management function entity (Transport Location ManagementFunctional Entity abbreviates TLM-FE as) is used to register and distributes to other network location information that user's IP address and NAC-FE provide;
Network access configuration function entity (Network Access ConfigurationFunctional Entity, abbreviate NAC-FE as), be used for being responsible for to user terminal distributing IP address, simultaneously may distribute other network configuration parameters, as the address of dns server, the address of Xin Lingdaili etc. to user terminal.
ILCF is also referred to as mapping server, comprises following functional entity:
Identify label separates mapping memory function entity (Id-Loc-split MappingStorage Function Entity with the position, abbreviate ILMS-FE as), it separates the mapping storage entity as User Identity among the NGN with the position, be used to store the mapping relations of User Identity Host ID and one or more position LOC (being the IP address);
Identify label separates map updating functional entity (Id-Loc-split MappingUpdate Function Entity with the position, abbreviate ILMU-FE as), it separates the map updating entity as User Identity among the NGN with the position, be used to realize the renewal of User Identity Host ID and one or more positions LOC mapping relations.
Transfer function comprises following functional entity:
Identify label separates mapping function entity (Id-loc-split mappingfunction entity with the position, abbreviate ILM-FE as), it is used to realize the mapping of User Identity Host ID and one or more position LOC as the mapping database entity of User Identity among the NGN and position piece-rate system;
(Policy enforcement functional entity, PE-FE), it is the functional entity of transport layer strategy execution to policy execution functional entity.
The functional entity that service control function comprises is: operation layer user configuration feature entity (Service User Profile Functional Entity abbreviates SUP-FE as) is used for being responsible for configuration service layer user profile.
The function that UE comprises has: identify label separates mapping function (Id-loc-Mapping functions abbreviates ILMF as) with the position.
Referring to Fig. 5, the method flow diagram that the many caves terminal that provides for present embodiment connects, many caves terminal UE 2 in the present embodiment uses a plurality of position LOC to communicate simultaneously, present embodiment is that the IP address of terminal is that example describes with the position LOC of terminal, after UE1 and UE2 finish authentication registration, UE1 begins to be connected the process of foundation with UE2, and process is as follows:
Step 502, UE1 for example, sends DNS request message (NDNS Query) to DNS to the IP address that domain name server (DNS) obtains the identify label of UE2 and the mapping server at UE2 place (ILMS-FE2 or ILMU-FE2);
Step 504, UE1 sends map updating request message ID/LOC mapping update request to the mapping server at UE2 place; This map updating request message can carry the identify label of UE1 and the IP address of UE1, and the identify label of UE2;
After step 506, mapping server are received the map updating request message, determine that UE2 is many caves terminal, send choice of location message to UE2;
Step 508, UE2 selects one or more IP address, and the IP address of selecting is offered mapping server;
UE2 is when selecting the IP address, can select the IP address of signal post's need according to the policy configurations that sets in advance, set in advance policy configurations, for example: can be each IP address setting priority, according to the flow or the corresponding IP address of speed selection that need with UE1 signal post, when big, select the high IP address of priority as flow;
Wherein, above-mentioned steps 504-step 510 obtains the specific implementation process of the IP address of UE2 communication use by ID/LOC map updating process for UE1;
Step 512, UE1 connects according to the IP address and the UE2 that obtain; The detailed process that connects can be with reference to following method:
UE1 sends connection request message according to the IP address that obtains to UE2, this connection request message can be carried the IP address of UE1, the identify label of UE1 and UE2 perhaps can also be carried the term of validity (show use this IP address) of the IP address of UE1 in the time period of term of validity appointment; UE2 verifies connection request message, after checking is passed through, sends connection request response ACK message to UE1, and this connection request response message can carry response parameter; After UE1 receives the connection request response message, send the connection acknowledge message, confirm to connect with UE2 to UE2; UE2 receives the connection acknowledge message, confirms to connect with UE1.
After UE1 sends this connection request message, wait for affirmation, if necessary, can retransmit connection request message from UE2.After UE2 receives the connection request message and checking that UE1 sends, upgrade mapping relations (user ID of UE1 and UE2 and the corresponding relation of address between local association and the UE2 address, because association in the past is to set up with old address, upgrading local association now will be with new address).Simultaneously, UE2 verifies for the IP address to UE1, can be in response message with on response parameter (as detecting the key of UE1 user ID, the identify label of UE2 etc.).UE1 handles the ACK message from UE2, sends to UE2 to connect acknowledge message, carries the nonce value in this message.After UE1 receives and connects acknowledge message, think that according to the nonce value IP address validation of UE2 finishes, and bring into use the IP address of new UE2.
Preferably, in order to strengthen the fail safe of communication, parameter reference information safe to carry in above-mentioned connection request response message and the connection request message, said method also comprises: UE1 and UE2 set up escape way according to Security Parameter Index information, communicate by escape way.
Present embodiment is by obtaining the IP address of UE2 from mapping server, and connects according to this IP address and UE2, in the time of can solving UE2 and be many caves terminal, and the problem that can not in the NGN network, use; When UE2 moves,, thereby guaranteed the continuity of conversation simultaneously, strengthened the serviceability of NGN network because use the identify label of identify label as main frame.
Embodiment 2
The IP address that many caves terminal UE 2 selects signal post to need according to policy configurations, when in mapping server (ILMS-FE2/ILMU-FE2), registering, inform mapping server (ILMS-FE2/ILMU-FE2) used IP address of its when communication, this IP address can be one or more.At this moment, UE1 is connected the process of foundation and non-many caves terminal, and to be connected the process of foundation similar with UE2, referring to Fig. 6, the method flow diagram that the many caves terminal that provides for present embodiment connects, present embodiment is that the IP address of terminal is that example describes with the position LOC of terminal, after UE1 and UE2 finished authentication registration, UE1 began to be connected the process of foundation with UE2, and process is as follows:
Step 602, UE1 obtains the IP address of the identify label of UE2 and the mapping server at UE2 place (ILMS-FE2 or ILMU-FE2) to domain name server (DNS);
Step 604, UE1 sends map updating request message ID/LOC mapping update request to the mapping server at UE2 place; This map updating request message can carry the identify label of UE1 and the IP address of UE1, and the identify label of UE2;
After step 606, mapping server are received the map updating request message, send map updating response message ID/LOC mapping update response, the IP address that this map updating response message provides when carrying the UE2 registration to UE1;
Because the IP address that the known road of mapping server (ILMS-FE2/ILMU-FE2) UE2 signal post uses, so after mapping server is received the map updating request message, directly return the map updating response message ID/LOCmapping update response of the IP address that band UE2 provides to UE1;
Wherein, above-mentioned steps 604-step 606 obtains the specific implementation process of the IP address of UE2 communication use by ID/LOC map updating process for UE1;
Step 608, UE1 connects according to the IP address and the UE2 that obtain; The process of the detailed process that connects in can reference example 1 no longer describes in detail here.
Present embodiment is by obtaining the IP address of UE2 from mapping server, and this IP address provides when registering for UE2, connects according to this IP address and UE2, in the time of can solving UE2 and be many caves terminal, and the problem that can not in the NGN network, use; When UE2 moves,, thereby guaranteed the continuity of conversation simultaneously, strengthened the serviceability of NGN network because use the identify label of identify label as main frame.
Embodiment 3
Present embodiment provides a kind of many caves system that terminal connects, and referring to Fig. 7, this system comprises first terminal 702, mapping server 704 and second terminal 706;
Preferably, above-mentioned name server is used for providing the identify label of second terminal 706 and the IP address of mapping server 704 to first terminal 702; First terminal 702 is used for obtaining the position that second terminal 706 is communicated by letter and used according to the identify label of the IP address of mapping server 704 and second terminal 706 from mapping server 704.
Wherein, the position of terminal can be the IP address of terminal.
First position of terminal 702 of present embodiment by obtaining second terminal 706 to mapping server 704, in the time of can solving second terminal 706 for many caves terminal, the problem that can not in the NGN network, use; When second terminal 706 moves,, thereby guaranteed the continuity of conversation simultaneously, strengthened the serviceability of NGN network because use the identify label of identify label as main frame.
From above description, the embodiment of the invention has realized following technique effect as can be seen: terminal can be obtained the position of the communication use of many caves terminal from mapping server, connect according to this position and many caves terminal, in the time of can solving terminal and be many caves terminal, the problem that can not in the NGN network, use; When terminal moves,, thereby guaranteed the continuity of conversation simultaneously, strengthened the serviceability of NGN network because use the identify label of identify label as main frame.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method that the cave terminal connects more than a kind is characterized in that, the mapping relations of the identify label of storage terminal and the one or more positions of described terminal on mapping server ILMS-FE/ILMU-FE said method comprising the steps of:
First terminal obtains the IP address of described mapping server ILMS-FE/ILMU-FE by the domain name server (DNS) inquiry;
Described first terminal sends the map updating request message to described mapping server, and the one or more positions that obtain described second terminal are the IP address;
Described first terminal connects according to the position and described second terminal of described acquisition.
2. method according to claim 1 is characterized in that, the process that described first terminal obtains the position of described second terminal comprises:
First terminal sends the map updating request message to described mapping server;
After described mapping server is received described map updating request message, determine that described second terminal is many caves terminal, send choice of location message to described second terminal;
It is the IP address that described second terminal is selected one or more positions, and the position of selecting is offered described mapping server; And
Described mapping server sends the map updating response message to described first terminal, and described map updating response message carries the position of described selection.
3. method according to claim 2 is characterized in that, described first terminal comprises to the mapping server transmission map updating request message at the second terminal place:
Described first terminal sends the map updating request message according to the identify label of described second terminal and the IP address of described mapping server to described mapping server.
4. method according to claim 1 is characterized in that, described method also comprises: second terminal is selected the position of use of communicating by letter in advance, and in registration process the position of selecting is offered described mapping server.
5. method according to claim 4 is characterized in that, the process that described first terminal obtains the position of described second terminal comprises:
Described first terminal sends the map updating request message to described mapping server;
After described mapping server is received described map updating request message, send the map updating response message, the position that described map updating response message provides when carrying described second endpoint registration to described first terminal.
Described first terminal connects according to the described position and described second terminal that obtain.
6. according to the method described in claim 4 or 5, it is characterized in that the position that described second terminal selects communication to use is to select according to the policy configurations that sets in advance.
7. according to arbitrary described method among the claim 1-5, it is characterized in that described first terminal connects according to the position that obtains and described second terminal and comprises:
Described first terminal sends connection request message according to the position that obtains to described second terminal;
Described second terminal is verified described connection request message, after checking is passed through, sends the connection request response message to described first terminal; And
After described first terminal is received described connection request response message, send the connection acknowledge message, confirm to connect with described second terminal to described second terminal;
After described first terminal is received described connection acknowledge message, confirm to connect with described first terminal.
8. method according to claim 7, it is characterized in that, parameter reference information safe to carry in described connection request response message and the described connection request message, described method also comprises: described first terminal and described second terminal are set up escape way according to Security Parameter Index information, communicate by described escape way.
9. the system that the cave terminal connects more than a kind is characterized in that, comprises first terminal, mapping server and second terminal;
Described first terminal is used for the IP address by the described mapping server ILMS-FE/ILMU-FE of domain name server (DNS) inquiry acquisition; Send the map updating request message to described mapping server, the one or more positions that obtain described second terminal are the IP address; Position and described second terminal according to described acquisition connect;
Described mapping server ILMS-FE/ILMU-FE is used for the identify label of storage terminal and the mapping relations of the one or more positions of described terminal;
Described second terminal, the one or more positions that are used for selecting offer described mapping server; And use position and described first terminal selected to connect.
10. system according to claim 9 is characterized in that, domain name server DNS is used for providing the identify label of described second terminal and the IP address of described mapping server to described first terminal; Described first terminal is used for obtaining the position that described second terminal communication is used according to the identify label of the IP address of described mapping server and described second terminal from described mapping server.
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| CN2010101403798A CN102209011A (en) | 2010-03-29 | 2010-03-29 | Method for establishing connection with multi-homed terminal and system thereof |
| PCT/CN2011/071259 WO2011120365A1 (en) | 2010-03-29 | 2011-02-24 | Method and system for establishing connection between multi-homed terminals |
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| CN105376342A (en) * | 2015-10-12 | 2016-03-02 | 北京京东尚科信息技术有限公司 | Device and method for determining user partition in internet and server using device |
| CN106059992A (en) * | 2016-04-29 | 2016-10-26 | 深圳市鼎盛智能科技有限公司 | Robot communication method and robot communication system |
| CN113449944A (en) * | 2020-03-27 | 2021-09-28 | 中国移动通信集团山东有限公司 | Work order processing method and device based on hardware sharing and computer equipment |
| CN114567645A (en) * | 2022-03-01 | 2022-05-31 | 深圳市潮流网络技术有限公司 | Backup method and device between communication devices, computer device and storage medium |
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| CN105376342B (en) * | 2015-10-12 | 2018-11-23 | 北京京东尚科信息技术有限公司 | For determining the device and method of user partition in internet and using the server of described device |
| CN106059992A (en) * | 2016-04-29 | 2016-10-26 | 深圳市鼎盛智能科技有限公司 | Robot communication method and robot communication system |
| CN113449944A (en) * | 2020-03-27 | 2021-09-28 | 中国移动通信集团山东有限公司 | Work order processing method and device based on hardware sharing and computer equipment |
| CN114567645A (en) * | 2022-03-01 | 2022-05-31 | 深圳市潮流网络技术有限公司 | Backup method and device between communication devices, computer device and storage medium |
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| WO2011120365A1 (en) | 2011-10-06 |
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