CN101998684A - Method, system and equipment for accessing terminal - Google Patents
Method, system and equipment for accessing terminal Download PDFInfo
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- CN101998684A CN101998684A CN2009100915762A CN200910091576A CN101998684A CN 101998684 A CN101998684 A CN 101998684A CN 2009100915762 A CN2009100915762 A CN 2009100915762A CN 200910091576 A CN200910091576 A CN 200910091576A CN 101998684 A CN101998684 A CN 101998684A
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Abstract
The invention discloses a method, a system and equipment for accessing a terminal. A direct or indirect corresponding relationship between a fixed IP address and a dynamic IP address of the terminal is established, and when the terminal is accessed, the dynamic IP address of the terminal in the currently accessed network is acquired by utilizing the known fixed IP address of the terminal, so the terminal is accessed, and the aim that group client members access one another by adopting the fixed IP address outside the local area network is fulfilled.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method, system and equipment of access terminal.
Background technology
Virtual Private Network (Virtual Private Network, VPN) be the technology of a kind of member of group customer by wireless network access group customer internal lan, when the member need visit internal lan, initiate PDP Context (PDP Context) to GGSN (GGSN) and activate request, and in PDP Context activation request, carry corresponding VPN information.GGSN distributes the IP address (can be that static ip address also can be a dynamic IP addressing) that belongs to the special-purpose VPN address field of this group customer according to the APN information that receives for the member.After PDP Context activation was finished, the member can transmit the IP message by GGSN, to realize the visit to the group customer internal lan.
Along with the development of business, some group customer wish to realize exchanging visit demand between the inner member by special-purpose VPN technologies that the fixed ip address mode is exactly the communication mode that proposes in order to realize the exchanging visit between the inner member.
The general fixed ip address mode that adopts of existing network is:
Be recorded as the fixed ip address that this member distributes in each member's of group customer attaching position register (HLR), when the member visited the group customer local area network (LAN), GGSN distributed the IP address of writing down among the HLR of correspondence for this member.A certain member wish and other members between when exchanging visits, determine other members' fixed ip address according to mobile terminal identification, and then utilize the fixed ip address of determining directly to set up data to be connected with other members.
Under the mode of said fixing IP address, the member of group customer can realize directly exchanging visits after inserting the special-purpose VPN of this group according to other members' fixed ip address, but when the group customer member inserts another VPN, because the group customer member does not know the IP address of other members in other VPN, thereby can't realize the exchanging visit between the member.In addition, under said fixing IP address mode, can only realize providing service for the terminal of the special-purpose VPN of this group, have the risk of Single Point of Faliure by a GGSN; Simultaneously, the finite capacity of a GGSN is difficult to satisfy the requirement of extensive group customer; In addition, in the fixed ip address mode, HLR need support the fixed ip address distribution function, promptly has the fixedly function of IP of record member, and part HLR does not support the fixed ip address distribution function in the existing network, in order to realize need carrying out upgrading to the HLR in the existing network by said fixing IP address mode at the whole network, obtain performance higher H LR, increased the cost that the inner member of group customer exchanges visits.
Summary of the invention
The embodiment of the invention provides a kind of method, system and equipment of access terminal, when the inner member of solution group customer inserts another VPN, and the problem that the group customer member can't adopt fixed ip address to exchange visits.
A kind of method of access terminal, described method comprises:
Reception is used to visit first data access request of first terminal, comprises the fixed ip address of first terminal in described first data access request;
According to the fixed ip address of described first terminal, determine the dynamic IP addressing of the first corresponding terminal;
According to the dynamic IP addressing of first terminal, send described first data access request to first terminal of correspondence;
Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
A kind of communication system, described communication system comprises:
The access request transmitting apparatus is used to send first data access request of visiting first terminal, comprises the fixed ip address of first terminal in described first data access request;
Routing forwarding equipment is used to receive described first data access request, according to the fixed ip address of described first terminal, determine the dynamic IP addressing of the first corresponding terminal, and, according to the dynamic IP addressing of first terminal, send described first data access request to first terminal of correspondence;
Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
A kind of routing forwarding equipment, described equipment comprises:
The request receiver module is used to receive the data access request of visiting first terminal, comprises the fixed ip address of first terminal in the described data access request;
Address conversion module is used for the fixed ip address according to described first terminal, determines the dynamic IP addressing of the first corresponding terminal;
Data transmission blocks is used for the dynamic IP addressing according to first terminal, sends described data access request to first terminal of correspondence;
Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
The embodiment of the invention by setting up terminal fixed ip address and the corresponding relation between the dynamic IP addressing, when terminal is conducted interviews, utilize the fixed ip address of known terminal to obtain dynamic IP addressing in the current access network of terminal, and then realization has reached the purpose that the group customer member adopts fixed ip address to exchange visits to the visit of terminal when inserting another VPN.
Description of drawings
Fig. 1 is a steps flow chart schematic diagram of realizing terminal mutual visit in the embodiment of the invention one;
Fig. 2 is the equipment connection diagram that realizes terminal mutual visit in the embodiment of the invention two;
Fig. 3 is a steps flow chart schematic diagram of realizing terminal mutual visit in the embodiment of the invention three;
Fig. 4 is a communication system architecture schematic diagram in the embodiment of the invention four;
Fig. 5 is a routing forwarding device structure schematic diagram in the embodiment of the invention five.
Embodiment
In order to realize the object of the invention, the embodiment of the invention proposes the exchanging visit mode between the inner member of a kind of group customer, be the default fixed ip address corresponding of each member's group customer local area network (LAN) of group customer inside, represent that this member uses default fixed ip address in the group customer local area network (LAN) always with terminal iidentification.When the member leaves the group customer local area network (LAN) and insert other VPN in the GPRS network, one among a plurality of GGSN will be distributed a dynamic IP addressing in this VPN for this member of meeting.Member's fixed ip address, corresponding relation between dynamic IP addressing and the member's sign can be kept in the routing forwarding equipment, when a member of group customer inside wishes to exchange visits with another member, a described member can utilize self dynamic IP to initiate data access request to another member's fixedly IP, routing forwarding equipment is according to fixed ip address, corresponding relation between dynamic IP addressing and the member's sign, find out another member's present dynamic IP address, and then data access request is forwarded to another member, realize the exchanging visit between the member.
Below in conjunction with Figure of description the embodiment of the invention is described in detail.
Embodiment one:
As shown in Figure 1, for realizing the step schematic diagram of terminal mutual visit in the embodiment of the invention one, suppose that the terminal that relates in the various embodiments of the present invention is the terminal with network accessibility, as can inserting GPRS network, and the portable terminal of visiting special-purpose VPN by GPRS network; The routing forwarding equipment that relates in the various embodiments of the present invention can be to carry out interconnected with the network element in two network segments, and equipment with data message forwarding function, simultaneously, routing forwarding equipment also has the synchronous in real time corresponding relation for the dynamic IP addressing of terminal distribution and terminal iidentification from GGSN.Routing forwarding equipment can be network elements such as switch, router, also can be the logical block that depends on network elements such as GGSN.
The method of embodiment one may further comprise the steps:
Step 101: routing forwarding equipment receives first data access request, comprises the fixed ip address of first terminal in described first data access request.
First data access request in the present embodiment is the request message that expression hope conducts interviews to first terminal.
In present embodiment one, the fixed ip address of first terminal can be the IP address in first network segment, and this IP address assignment no longer changes after giving terminal, as the IP address of first terminal in the group customer local area network (LAN); The dynamic IP addressing of first terminal can be the IP address in second network segment, Random assignment when second network segment map network is inserted in terminal in this address, IP address allocated when inserting another VPN as first terminal.There are not lap in first network segment and second network segment that relate in the various embodiments of the present invention.
In the present embodiment, the equipment of initiating first data access request can be and second terminal of first terminal under same group customer, and second terminal is current to insert same VPN with first terminal, that is to say that the fixed ip address of second terminal and the definition of dynamic IP addressing are identical with first terminal.The equipment of initiating first data access request can also be server, as is positioned at the server of group customer local area network (LAN), or other can know the server of terminal fixed ip address.
Step 102: routing forwarding equipment is determined the dynamic IP addressing of the first corresponding terminal according to the fixed ip address of described first terminal.
Because current first terminal inserts second network segment map network, therefore, can not directly pass through the visit of the fixed ip address realization of first terminal to first terminal, and need conduct interviews according to the current actual dynamic IP addressing of using of first terminal, particularly, determine that according to the fixed ip address of first terminal mode of the dynamic IP addressing of first terminal includes but not limited to following dual mode:
First kind of mode:
Routing forwarding equipment is according to the corresponding relation of fixed ip address and terminal iidentification, determine the terminal iidentification of the fixed ip address correspondence of described first terminal, and, according to the corresponding relation of dynamic IP addressing and terminal iidentification, determine the dynamic IP addressing of first terminal of the terminal iidentification correspondence of described first terminal.
Under this mode,, obtain the dynamic IP addressing of first terminal indirectly with the tie that concerns of unique terminal iidentification as the fixed ip address of first terminal and dynamic IP addressing.
The second way:
After routing forwarding equipment obtains to be the dynamic IP addressing of first terminal distribution, directly set up the corresponding relation between dynamic IP addressing and the fixed ip address, when first terminal repeatedly inserts the network of second network segment correspondence, routing forwarding equipment basis is the dynamic IP addressing of first terminal distribution when inserting at every turn, upgrades the fixed ip address of first terminal and the corresponding relation between the dynamic IP addressing.
Routing forwarding equipment is determined the dynamic IP addressing of first terminal according to the fixed ip address of first terminal of having set up and the corresponding relation between the dynamic IP addressing.
Step 103: if first data access request is initiated by second terminal, and the dynamic IP addressing that comprises second terminal in first data access request, then routing forwarding equipment is determined the terminal iidentification of described second terminal according to the dynamic IP addressing of second terminal.
Step 104: routing forwarding equipment is determined the fixed ip address of second terminal of the terminal iidentification correspondence of described second terminal.
Step 105: routing forwarding equipment is revised as the dynamic IP addressing of second terminal in described first data access request fixed ip address of second terminal.
If routing forwarding equipment is preserved the dynamic IP addressing of terminal and the corresponding relation of fixed ip address according to first kind of mode in the step 102, then can determine the fixed ip address of second terminal according to the mode in step 103 and the step 104, and the source address in first data access request is revised as the fixed ip address of second terminal by the dynamic IP addressing of second terminal, the purpose of doing like this is:
Because Random assignment when inserting the network of second network segment correspondence that the dynamic IP addressing of second terminal is second terminal, therefore, first terminal is also known the not terminal that dynamic IP addressing referred to of second terminal, also can't directly visit second terminal by the dynamic IP addressing of second terminal.To this, the fixed ip address with second terminal in the present embodiment is carried in first data access request, makes first terminal can determine to visit initiator's identity, also can pay a return visit according to the fixed ip address of second terminal.
Step 103～step 105 is better embodiment of present embodiment, if first terminal is not paid a return visit second terminal, then step 103～step 105 also can be cancelled.
Step 106: routing forwarding equipment is according to the dynamic IP addressing of first terminal, sends described first data access request to first terminal of correspondence.
Because the dynamic IP addressing of first terminal is the routing address of the current reality of first terminal, therefore, can first data access request be routed to first terminal according to the dynamic IP addressing of first terminal.
Step 107: after first terminal receives first data access request, the message that wherein carries is handled.
Step 108: first terminal sends second data access request to routing forwarding equipment, comprises the fixed ip address of second terminal in described second data access request.
Second data access request in the present embodiment is the request message that expression hope conducts interviews to second terminal.
In step 103～step 105, routing forwarding equipment is carried at the fixed ip address of second terminal and sends to first terminal in first data access request, realize of the visit of second terminal to first terminal, when first terminal wishes to visit second terminal, can send second data access request to routing forwarding equipment according to the similar fashion of step 101.
Step 109: routing forwarding equipment is determined the dynamic IP addressing of second terminal of the fixed ip address correspondence of described second terminal.
In this step, can determine the dynamic IP addressing of second terminal according to two kinds of implementations in the step 102.
Step 110: routing forwarding equipment is according to the dynamic IP addressing of second terminal, sends described second data access request to second terminal of correspondence.
At this moment, realized of the visit of first terminal, just realized the exchanging visit of first terminal and second terminal second terminal.
By being the mode of terminal distribution dynamic IP addressing in the embodiment of the invention one, reached the purpose that the group customer member adopts fixed ip address to exchange visits when inserting another VPN, and, under the mode of present embodiment, the dynamic IP addressing of terminal in another VPN that inserts is terminal distribution by a plurality of GGSN in the network, fixed ip address is also specified in advance, having avoided in the prior art by GGSN is the process that a large amount of inner members of group customer distributes fixed ip address, alleviate the operating pressure of GGSN, inner member's communication disruption when this GGSN breaks down, also can not occur; In addition, the fixed ip address of terminal does not need to be stored in advance among the HLR, has reduced the requirement to the HLR ability, has reduced the realization cost of terminal mutual visit.
Embodiment two:
The embodiment of the invention two illustrates the implementation procedure of embodiment one by instantiation.Suppose that terminal A and terminal B are the members of same group customer inside among the embodiment two, as shown in Figure 2, first network segment that distributes for group customer is 192.168.*.*, wherein, the fixed ip address of terminal A is 192.168.1.1, and the fixed ip address of terminal B is 192.168.1.2; A VPN in the current access GPRS network of terminal A and terminal B, its second network segment is 10.1.*.*, and wherein, the dynamic IP addressing of terminal A is 10.1.1.1, and the dynamic IP addressing of terminal B is 10.1.1.2.Then terminal A and the terminal B flow process of exchanging visits is as follows:
During the first step: terminal A visit GPRS network, send the PDP Context request message to SGSN.
Second step: SGSN is chosen as the GGSN that terminal A provides service according to the VPN selective rule among a plurality of GGSN from GPRS network.
The 3rd step: SGSN sends the PDP Context request message that terminal A initiates to the GGSN that selects.
The 4th step: the GGSN that receives described PDP Context request message distributes dynamic IP addressing 10.1.1.1 for terminal A.
Terminal B also can carry out above four steps, distributes dynamic IP addressing 10.1.1.2 by GGSN for terminal B.
The 5th step: terminal A initiates first data access request to GGSN.
In the present embodiment, routing forwarding equipment is interconnected by special-purpose VPN and GGSN, be connected across between first network segment and second network segment, the network element in the corporate intranet of first network segment correspondence will send to routing forwarding equipment by enterprise firewall for the fixed ip address of terminal A and terminal B appointment; Each GGSN in second network segment map network will send to routing forwarding equipment for the dynamic IP addressing of terminal A and terminal B distribution.
When terminal A wishes access terminal B, terminal A can only be known the fixed ip address of self dynamic IP address and terminal B, therefore, and in first data access request that terminal A sends, destination address is filled in the fixed ip address of terminal B, and source address is filled in the dynamic IP addressing of terminal A.
The form of first data access request can be as shown in table 1.
Table 1
The 6th step: GGSN is transmitted to routing forwarding equipment with first data access request.
The 7th step: routing forwarding equipment is determined the terminal iidentification of accessed terminal according to destination address.
The terminal iidentification here can be unique expression terminal information, as phone number etc.
The 8th step: routing forwarding equipment is determined the corresponding current dynamic IP addressing in GPRS network of terminal B according to described terminal iidentification, and the destination address in the table 1 is revised as the dynamic IP addressing of the terminal B that determines, the amended first data access request form of destination address is as shown in table 2.
Table 2
The 9th step: can exchange visits with terminal A in order to make terminal B, routing forwarding equipment is determined the terminal iidentification of terminal A according to source address, and then determines the fixed ip address of terminal A.
The tenth step: routing forwarding equipment is the fixed ip address of terminal A with the source address modification in the table 2, and the first data access request form behind the source address modification is as shown in table 3.
Table 3
The 11 step: routing forwarding equipment sends to terminal B with first data access request, realizes the visit of terminal A to terminal B.
The 12 step:, then can send second data access request to terminal A according to the mode in the 5th step to the 11 step if terminal B wishes access terminal A.
Embodiment three:
The process of exchanging visits between process of exchanging visits between the server of terminal and group customer local area network (LAN) inside and the terminal is similar, and server can find terminal to conduct interviews by the fixedly IP of terminal, and as shown in Figure 3, concrete access process is as follows:
Step 301: server comprises the fixed ip address of terminal to routing forwarding equipment sending data access request in the described data access request.
Step 302: routing forwarding equipment is determined the dynamic IP addressing of corresponding terminal according to the fixed ip address of described terminal.
The fixed ip address of terminal is the IP address of terminal in first network segment, the dynamic IP addressing of terminal is the IP address of terminal in second network segment, server can be the network element in first network segment map network, also can be that other can know the fixedly server of IP of terminal.
The mode of determining the fixed ip address of first terminal or second terminal and dynamic IP addressing among definite mode of the fixed ip address of terminal and dynamic IP addressing and embodiment one, the embodiment two is identical.
Step 303: routing forwarding equipment is according to the dynamic IP addressing of terminal, sends described data access request to the terminal of correspondence.
By the scheme of the embodiment of the invention three, server can pass through the visit of the fixed ip address realization of terminal to terminal, and then can control terminal easily.
Embodiment four:
The embodiment of the invention four provides a kind of communication system, as shown in Figure 4, described communication system comprises access request transmitting apparatus 11, routing forwarding equipment 12 and first terminal 13, wherein: access request transmitting apparatus 11 is used to send first data access request, comprises the fixed ip address of first terminal 13 in described first data access request; Routing forwarding equipment 12 is used to receive described first data access request, fixed ip address according to described first terminal 13, determine the dynamic IP addressing of the first corresponding terminal 13, and, according to the dynamic IP addressing of first terminal 13, to described first data access request of first terminal, 13 transmissions of correspondence; Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
Further, routing forwarding equipment 12 also is used for the corresponding relation according to fixed ip address and terminal iidentification, determine the terminal iidentification of the fixed ip address correspondence of described first terminal 13, and, according to the corresponding relation of dynamic IP addressing and terminal iidentification, determine the dynamic IP addressing of first terminal of the terminal iidentification correspondence of described first terminal 13.
Described access request transmitting apparatus 11 is second terminal or server.
Routing forwarding equipment 12 also is used for when the access request transmitting apparatus is second terminal, dynamic IP addressing according to second terminal in first data access request, determine the terminal iidentification of described second terminal, and, determine the fixed ip address of second terminal of the terminal iidentification correspondence of described second terminal, and the dynamic IP addressing of second terminal in described first data access request is revised as the fixed ip address of second terminal, and first data access request sent to first terminal 13, wherein: the fixed ip address of second terminal is the IP address of second terminal in first network segment, and the dynamic IP addressing of second terminal is the IP address of second terminal in second network segment.
First terminal 13 is used to send second data access request, comprises the fixed ip address of second terminal in described second data access request; Routing forwarding equipment 12 also is used to receive described second request of data, determine the dynamic IP addressing of second terminal of the fixed ip address correspondence of described second terminal, and, send described second data access request to second terminal of correspondence according to the dynamic IP addressing of second terminal.
Embodiment five:
The embodiment of the invention five also provides a kind of routing forwarding equipment, as shown in Figure 5, described equipment comprises: request receiver module 21, address conversion module 22 and data transmission blocks 23, wherein: request receiver module 21 is used to receive data access request, comprises the fixed ip address of first terminal in the described data access request; Address conversion module 22 is used for the fixed ip address according to described first terminal, determines the dynamic IP addressing of the first corresponding terminal; Data transmission blocks 23 is used for the dynamic IP addressing according to first terminal, sends described data access request to first terminal of correspondence; Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment.
Described address conversion module 22 comprises that first determines submodule 31 and second definite submodule 32, wherein: first determines that submodule 31 is used for the corresponding relation according to fixed ip address and terminal iidentification, determines the terminal iidentification of the fixed ip address correspondence of described first terminal; Second determines that submodule 32 is used for the corresponding relation according to dynamic IP addressing and terminal iidentification, determines the dynamic IP addressing of first terminal of the terminal iidentification correspondence of described first terminal.
Described second determines that submodule 32 also is used for when data access request comprises the dynamic IP addressing of second terminal, according to the dynamic IP addressing of second terminal, determines the terminal iidentification of described second terminal; Described first determines that submodule 31 also is used for the fixed ip address of the terminal iidentification correspondence of definite second terminal, and the dynamic IP addressing of second terminal in the described data access request is revised as the fixed ip address of second terminal.Then data transmission blocks 23 sends the amended data access request in address, and wherein: the fixed ip address of second terminal is the IP address of second terminal in first network segment, and the dynamic IP addressing of second terminal is the IP address of second terminal in second network segment.
By method, system and the equipment that the embodiment of the invention provides, realized the purpose that the group customer member adopts fixed ip address to exchange visits outside local area network (LAN), and the server in the group customer local area network (LAN) is to group customer member's real-time monitoring; And, under the mode of present embodiment, dynamic IP addressing is a terminal distribution by a plurality of GGSN in the network, fixed ip address is also specified in advance, having avoided a GGSN in group's network is the process that a large amount of inside members distributes fixed ip address, alleviate the operating pressure of GGSN, inner member's communication disruption when this GGSN breaks down, also can not occur; In addition, the fixed ip address of terminal does not need to be stored in advance among the HLR, has reduced the requirement to the HLR ability, has reduced the realization cost of terminal mutual visit.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (13)
1. the method for an access terminal is characterized in that, described method comprises:
Reception is used to visit first data access request of first terminal, comprises the fixed ip address of first terminal in described first data access request;
According to the fixed ip address of described first terminal, determine the dynamic IP addressing of the first corresponding terminal;
According to the dynamic IP addressing of first terminal, send described first data access request to first terminal of correspondence;
Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
2. the method for claim 1 is characterized in that, determines to comprise the dynamic IP addressing of the first corresponding terminal according to the fixed ip address of described first terminal:
According to the corresponding relation of fixed ip address and terminal iidentification, determine the terminal iidentification of the fixed ip address correspondence of described first terminal, and,
According to the corresponding relation of dynamic IP addressing and terminal iidentification, determine the dynamic IP addressing of terminal of the terminal iidentification correspondence of described first terminal.
3. method as claimed in claim 2 is characterized in that, described first data access request is to be initiated by second terminal, and also comprises the dynamic IP addressing of second terminal in described first data access request;
Determine after the dynamic IP addressing of first terminal, and first data access request sent to before first terminal that described method also comprises:
According to the dynamic IP addressing of second terminal, determine the terminal iidentification of described second terminal, and, determine the fixed ip address of the terminal iidentification correspondence of second terminal;
The dynamic IP addressing of second terminal in described first data access request is revised as the fixed ip address of second terminal, and first data access request is sent to first terminal;
Wherein: the fixed ip address of second terminal is the IP address of second terminal in first network segment, and the dynamic IP addressing of second terminal is the IP address of second terminal in second network segment.
4. method as claimed in claim 3 is characterized in that, first data access request is sent to after first terminal, and described method also comprises:
Receive second data access request that first terminal sends, comprise the fixed ip address of second terminal in described second data access request;
Determine the dynamic IP addressing of second terminal of the fixed ip address correspondence of described second terminal;
According to the dynamic IP addressing of second terminal, send described second data access request to second terminal of correspondence.
5. method as claimed in claim 3, it is characterized in that this method is applied to general grouped wireless network G PRS, global mobile communication network G SM, time division synchronization code multi-address access network TD-SCDMA, wireless code division multiple address access network WCDMA or CDMA 2000 CDMA2000;
The dynamic IP addressing of the dynamic IP addressing of first terminal or second terminal is distributed by following steps:
After GPRS serving GPRS support node SGSN receives the PDP Context request message of requesting terminal transmission, from a plurality of GGSN GGSN, be chosen as the GGSN of requesting terminal service, and described PDP Context request message sent to the GGSN of selection;
The GGSN that receives described PDP Context request message is that dynamic IP addressing is distributed in the requesting terminal;
The described request terminal is first terminal or second terminal.
6. a communication system is characterized in that, described communication system comprises:
The access request transmitting apparatus is used to send first data access request of visiting first terminal, comprises the fixed ip address of first terminal in described first data access request;
Routing forwarding equipment is used to receive described first data access request, according to the fixed ip address of described first terminal, determine the dynamic IP addressing of the first corresponding terminal, and, according to the dynamic IP addressing of first terminal, send described first data access request to first terminal of correspondence;
Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
7. communication system as claimed in claim 6 is characterized in that,
Routing forwarding equipment, also be used for corresponding relation according to fixed ip address and terminal iidentification, determine the terminal iidentification of the fixed ip address correspondence of described first terminal, and, according to the corresponding relation of dynamic IP addressing and terminal iidentification, determine the dynamic IP addressing of first terminal of the terminal iidentification correspondence of described first terminal.
8. communication system as claimed in claim 7 is characterized in that,
Described access request transmitting apparatus is second terminal or server.
9. communication system as claimed in claim 8 is characterized in that,
Routing forwarding equipment, also be used for when the access request transmitting apparatus is second terminal, dynamic IP addressing according to second terminal in first data access request, determine the terminal iidentification of described second terminal, and, determine the fixed ip address of second terminal of the terminal iidentification correspondence of described second terminal, and the dynamic IP addressing of second terminal in described first data access request is revised as the fixed ip address of second terminal, and first data access request is sent to first terminal;
Wherein: the fixed ip address of second terminal is the IP address of second terminal in first network segment, and the dynamic IP addressing of second terminal is the IP address of second terminal in second network segment.
10. communication system as claimed in claim 9 is characterized in that,
First terminal is used to send second data access request, comprises the fixed ip address of second terminal in described second data access request;
Routing forwarding equipment, also be used to receive described second request of data, determine the dynamic IP addressing of second terminal of the fixed ip address correspondence of described second terminal, and according to the dynamic IP addressing of second terminal, send described second data access request to second terminal of correspondence.
11. a routing forwarding equipment is characterized in that, described equipment comprises:
The request receiver module is used to receive the data access request of visiting first terminal, comprises the fixed ip address of first terminal in the described data access request;
Address conversion module is used for the fixed ip address according to described first terminal, determines the dynamic IP addressing of the first corresponding terminal;
Data transmission blocks is used for the dynamic IP addressing according to first terminal, sends described data access request to first terminal of correspondence;
Wherein: the fixed ip address of first terminal is the IP address of first terminal in first network segment, and the dynamic IP addressing of first terminal is the IP address of first terminal in second network segment, and first network segment and second network segment are not overlapping.
12. equipment as claimed in claim 11 is characterized in that, described address conversion module comprises:
First determines submodule, is used for the corresponding relation according to fixed ip address and terminal iidentification, determines the terminal iidentification of the fixed ip address correspondence of described first terminal;
Second determines to be used for the corresponding relation according to dynamic IP addressing and terminal iidentification by submodule, determines the dynamic IP addressing of first terminal of the terminal iidentification correspondence of described first terminal.
13. equipment as claimed in claim 11 is characterized in that,
Described second determines submodule, also is used for when first data access request comprises the dynamic IP addressing of second terminal, according to the dynamic IP addressing of second terminal, determines the terminal iidentification of described second terminal;
Described first determines submodule, also is used for the fixed ip address of the terminal iidentification correspondence of definite second terminal, and the dynamic IP addressing of second terminal in described first data access request is revised as the fixed ip address of second terminal;
Wherein: the fixed ip address of second terminal is the IP address of second terminal in first network segment, and the dynamic IP addressing of second terminal is the IP address of second terminal in second network segment.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898720A (en) * | 2015-01-26 | 2016-08-24 | ***通信集团广东有限公司 | Short message processing method, device and system |
| CN112073366A (en) * | 2020-07-23 | 2020-12-11 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Data processing method for railway financial system and data center |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100518185C (en) * | 2005-04-29 | 2009-07-22 | 华为技术有限公司 | Method for PPP access terminal obtaining carrier server address |
| CN101282232A (en) * | 2007-04-05 | 2008-10-08 | 华为技术有限公司 | Method, equipment and system for managing far-end apparatus |
| CN101369959A (en) * | 2007-08-14 | 2009-02-18 | 中兴通讯股份有限公司 | Network address conversion traversing method supporting point-to-point service |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898720A (en) * | 2015-01-26 | 2016-08-24 | ***通信集团广东有限公司 | Short message processing method, device and system |
| CN105898720B (en) * | 2015-01-26 | 2019-07-05 | ***通信集团广东有限公司 | A kind of processing method of short message, apparatus and system |
| CN112073366A (en) * | 2020-07-23 | 2020-12-11 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Data processing method for railway financial system and data center |
| CN112073366B (en) * | 2020-07-23 | 2023-02-17 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Data processing method for railway financial system and data center |
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| CN101998684B (en) | 2014-05-21 |
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