CN103796195B - Data transmission processing method, data transmission processing system and data service gateway - Google Patents
Data transmission processing method, data transmission processing system and data service gateway Download PDFInfo
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- CN103796195B CN103796195B CN201210428236.6A CN201210428236A CN103796195B CN 103796195 B CN103796195 B CN 103796195B CN 201210428236 A CN201210428236 A CN 201210428236A CN 103796195 B CN103796195 B CN 103796195B
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Abstract
The invention discloses a data transmission processing method, a data transmission processing system and a data service gateway. The data service gateway comprises a processing module, a converting module and a plurality of tunnel terminating modules, wherein each tunnel terminating module corresponds to one gateway GPRS support node GGSN. According to the invention, a plurality of tunnel terminating modules are added to the data service gateway, each tunnel terminating module corresponds to one gateway GPRS support node GGSN, the format of a request message is converted from IPv4 to IPv6 and the source address and the destination address of the request are converted from IPv4 addresses into IPv6 addresses in the tunnel terminating modules, request messages sent by all the GGSNs connected with the data service gateway can be processed in the processing module in a centralized mode, IPv6 messages are converted into IPv4 messages and IPv6 addresses are converted into IPv4 addresses in the converting module, and then the messages are sent to a server.
Description
Technical field
The present invention relates to data service technical field, more particularly to a kind of data transmission processing method, system and data industry
Business gateway.
Background technology
As shown in figure 1, existing WAP（Wireless Application Protocol, WAP) gateway-
Gateway GPRS Support Node（Gateway GPRS Support Node, GGSN）Under networking mode, terminal is initiated and arrival
The message of terminal, carries out address conversion and message forwarding through WAP gateway.In order to realize mobile phone terminal and business platform just
Normal open is believed, it is necessary to assure all mobile terminals being connected under same WAP gateway use different IP address.This requirement band
Following problem is carried out：
（1）Address space is limited, and traffic affecting is carried out：For IPv4, the maximum private network ground that can be used in theory
Location is 224（I.e. 1677.7216 ten thousand）, and actually remove after management address, device address and consideration, the number of addresses that can be used
Amount is less, and the business for being generally difficult to meet the province that userbase crosses hundred million carries out needs；And existing main flow terminal, business are flat
Platform, core network element do not support IPv6 addresses.In order to expand address space, operator often through build many set WAP gateways,
Access different GGSN；
（2）The management complexity of GGSN increases：Accessing must unified planning DHCP ground between the GGSN of same WAP gateway
Location pond, it is to avoid different terminals use identical IPv4 address.This adds increased the management of GGSN, safeguard complexity；Different province/areas
GGSN access same WAP gateway and can bring very big maintenance costs；Once in addition certain WAP gateway break down, need by
When business is switched to the WAP gateway that another is currently running, the dhcp address pool of correspondence GGSN need to again be planned.
（3）The administration overhead of WAP gateway increases：Due to the restriction of IP address quantity, many set WAP nets are must be provided with inside the province
Close, corresponding management service personnel need to be equipped with according to gateway quantity, so as to increased the administration overhead and cost of equipment.And according to
At present software and hardware present situation and development trend, disclosure satisfy that the WAP gateway product that inside the province all customer services are accessed is ripe, just
It is cannot to reach the standard grade because IPv4 address conflict issues are present.
（4）Internet service O＆M cost increases：Due to the multiple spot deployment of WAP gateway in same city, due to user
The physical location movement of terminal, the internet log of same user is necessarily dispersed in the internet behavior on multiple gateways, to user
Counted, analyzed, being traced to the source, fault location is both needed to obtain the daily record on multiple gateways, its O＆M cost is dramatically increased.
In a word, in existing GGSN-WAP gateways networking model, due to terminal IPv4 address pool space problem, WAP nets are caused
The maintenance cost of the place capacity, GGSN and WAP gateway of pass is greatly increased.
The content of the invention
Because IP address conflict needs to dispose the technical problem of mass data Service Gateway in order to solve prior art, this
Invention proposes a kind of data transmission processing method, system and data service gateway.
A kind of one aspect of the present invention, there is provided data transmission processing method, data service gateway includes multiple tunnel ends
Knot module, each tunnel termination block is corresponding with a Gateway GPRS Support Node GGSN respectively, and data service gateway is also wrapped
Processing module and modular converter are included, the method includes：
The tunnel termination block receives the service request message that correspondence GGSN sends, and the service request message is entered
After row solution tunnel encapsulation, the IPv4 request reports that source address and IPv4 request destination addresses are asked comprising private network IPv4 are obtained
Text；The first IPv4 request messages are converted to into an IPv6 request messages；Identified the private network according to the GGSN
IPv4 requests source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 requests destination
Location；The first IPv6 request messages are sent to the processing module；
The processing module performs Business Processing according to an IPv6 request messages, and IPv6 requests are reported
Text is forwarded to the modular converter；
The modular converter asks destination address to search the real IP v4 request mesh for wanting access server according to the IPv6
Address, according to the ATT being pre-configured with by the IPv6 request source address be converted to public network IP v4 request source address,
And an IPv6 request messages are converted to into the 2nd IPv4 request messages, comprising described true in the 2nd IPv4 request messages
IPv4 asks destination address and public network IP v4 request source address；The 2nd IPv4 request messages are sent to real IP v4
The corresponding server of request destination address.
A kind of another aspect of the present invention, there is provided data service gateway, including：Processing module, modular converter and multiple
Tunnel termination block, each tunnel termination block is corresponding with a Gateway GPRS Support Node GGSN respectively；
The tunnel termination block, for receiving the service request message that correspondence GGSN sends, to the service request report
Literary is carried out after solution tunnel encapsulation, is obtained and is asked source address and an IPv4 of IPv4 request destination addresses to ask comprising private network IPv4
Seek message；The first IPv4 request messages are converted to into an IPv6 request messages；Identified the private according to the GGSN
Net IPv4 requests source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 requests destination
Location；The first IPv6 request messages are sent to the processing module；
The processing module, for performing Business Processing according to an IPv6 request messages, by an IPv6
Request message is forwarded to the modular converter；
The modular converter, wants real IP v4 of access server to ask for asking destination address to be searched according to the IPv6
Destination address is sought, IPv6 requests source address is converted to by public network IP v4 request source ground according to the ATT being pre-configured with
Location, and an IPv6 request messages are converted to into the 2nd IPv4 request messages, comprising described in the 2nd IPv4 request messages
Real IP v4 asks destination address and public network IP v4 request source address；The 2nd IPv4 request messages are sent to described true
The corresponding server of IPv4 request destination addresses.
A kind of another aspect of the present invention, there is provided data transmission processing system, including：Multiple Gateway GPRS Support Nodes
GGSN, data service gateway and server,
The data service gateway include multiple tunnel termination blocks, each tunnel termination block respectively with a GGSN phase
Correspondence, data service gateway also includes processing module and modular converter,
The tunnel termination block, for receiving the service request message that correspondence GGSN sends, to the service request report
Literary is carried out after solution tunnel encapsulation, is obtained and is asked source address and an IPv4 of IPv4 request destination addresses to ask comprising private network IPv4
Seek message；The first IPv4 request messages are converted to into an IPv6 request messages；Identified the private according to the GGSN
Net IPv4 requests source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 requests destination
Location；The first IPv6 request messages are sent to the processing module；
The processing module, for performing Business Processing according to an IPv6 request messages, by an IPv6
Request message is forwarded to the modular converter；
The modular converter, wants real IP v4 of access server to ask for asking destination address to be searched according to the IPv6
Destination address is sought, IPv6 requests source address is converted to by public network IP v4 request source ground according to the ATT being pre-configured with
Location, and an IPv6 request messages are converted to into the 2nd IPv4 request messages, comprising described in the 2nd IPv4 request messages
Real IP v4 asks destination address and public network IP v4 request source address；The 2nd IPv4 request messages are sent to described true
The corresponding server of IPv4 request destination addresses.
The data transmission processing method of the present invention, system and data service gateway, by increasing many in data service gateway
Individual tunnel termination block, each tunnel termination block is corresponding with a Gateway GPRS Support Node GGSN respectively, while in tunnel
Request message form is converted to into IPv6 by IPv4 in road termination block, request source address and destination address are also converted to by IPv4
IPv6 addresses, in processing module can the request message that sends of couple all GGSN being connected with data service gateway concentrate
Process, afterwards IPv6 messages are converted to into IPv4 messages in modular converter, be to send out behind IPv4 addresses by the address conversion of IPv6
It is sent to server.
Multiple tunnel termination blocks are set in data service gateway with the different GGSN of correspondence and using IPv6 addresses, are kept away
Exempt from IP address conflict, therefore, also avoid the need for increasing multiple data service gateways to access different GGSN.In addition, counting
Inside Service Gateway, it is not required that multiple processing modules are set, it is only necessary to a processing module, it is possible to pair with data service net
The request message that all GGSN that connection connects send is focused on, it is to avoid the collision problem of processing module implicit IP address.
The present invention is not changing original networking mode and routing mode, without the need for transforming terminal, GGSN and server
And on the premise of IPv6 forms need not be supported, extend the address space and service available GGSN of data service gateway
Quantity, reduces network construction cost, reduces the difficulty and cost safeguarded to gateway.
Description of the drawings
Fig. 1 is the structural representation of data transmission processing system embodiment of the present invention；
Fig. 2 is the structural representation of data service gateway embodiment of the present invention；
Fig. 3 is the schematic flow sheet of data transmission processing method embodiment of the present invention；
Fig. 4 is the schematic flow sheet of another embodiment of data transmission processing method of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in figure 1, data transmission processing system embodiment of the present invention includes：Multiple GGSN, data service gateway kimonos
Business device.
Data service gateway includes multiple tunnel termination blocks 11a, 11b, 11c, 11d ..., each tunnel termination block
Corresponding with a GGSN respectively, data service gateway also includes processing module 12 and modular converter 13.
Tunnel termination block receives the service request message that correspondence GGSN sends, and the carrying out of the service request message is solved
After tunnel encapsulation, obtain and ask source address and IPv4 to ask an IPv4 request messages of destination address comprising private network IPv4；Will
First IPv4 request messages are converted to an IPv6 request messages；Private network IPv4 requests source address is converted to according to GGSN marks
IPv6 asks source address；IPv4 request destination addresses point are converted to into IPv6 request destination addresses；By an IPv6 request messages
Send to processing module.
Processing module performs Business Processing according to an IPv6 request messages, and an IPv6 request messages are forwarded to into conversion
Module.
Modular converter asks destination address to search the real IP v4 request destination address for wanting access server, root according to IPv6
IPv6 requests source address is converted to into public network IP v4 request source address according to the ATT being pre-configured with, and please by an IPv6
Ask message to be converted to the 2nd IPv4 request messages, destination address and public network are asked comprising real IP v4 in the 2nd IPv4 request messages
IPv4 asks source address；2nd IPv4 request messages are sent into server corresponding to true IPv4 request destination addresses.
As shown in Fig. 2 data service gateway embodiment of the present invention also includes authentication module 14.Authentication module receives GGSN and sends out
The authentication request packet for sending, authentication request packet includes private network IPv4 request source addresses, session information, authentication information；According to
Authentication request packet is authenticated, and after certification success, asks source address to inquire about the GGSN of the GGSN according to the private network IPv4
Mark, storage private network IPv4 request source addresses, session information and GGSN marks, return authentication should arrive message to GGSN.
Processing module carries out parsing the service logic for obtaining an IPv6 request messages to an IPv6 request messages；Work as industry
To insert during forward pass information, processing module sends asks the information inquiring request message of source address to certification to business logic comprising IPv6
Module.
Authentication module receive information inquiry request message, asks source address to parse GGSN marks and private network according to IPv6
IPv4 asks source address；The session information that source address and GGSN mark inquiries are prestored is asked according to private network IPv4；Generate bag
Information inquiry response message containing session information is simultaneously sent to processing module.
Processing module receive information inquiry response message, it will words information is inserted in an IPv6 request messages, is obtained
2nd IPv6 request messages；2nd IPv6 request messages are sent to into modular converter.
Modular converter asks destination address to search real IP v4 request destination address according to IPv6, according to the ground being pre-configured with
IPv6 requests source address is converted to public network IP v4 request source address by location conversion table, and the 2nd IPv6 request messages are converted to into the
Three IPv4 request messages, destination address and public network IP v4 request source ground are asked in the 3rd IPv4 request messages comprising real IP v4
Location；3rd IPv4 request messages are sent into server corresponding to true IPv4 request destination addresses.
It is as follows for the conversion concrete mode of address in the embodiment of the present invention：
（1）IPv6 asks the conversion between source address and private network IPv4 request source addresses
IPv6 request source addresses include the GGSN marks of 48 and the request source addresses of the private network IPv4 of 32, such as table 1 below institute
Show.
Table 1
| Implication | Identification section | Retain | GGSN is identified | Private net address |
| Length | 10 | 38 | 48 | 32 |
| Content example | 1111111011 | 0 | <GGSN_ID> | <IPv4 private net addresses> |
（2）IPv4 asks the conversion between destination address and IPv6 request destination addresses
IPv6 request destination addresses include the private network IPv4 request destination addresses of 32 and the public network identification field of 48, such as
Shown in table 2 below.
| Implication | Identification section | Retain | Public network is identified | Private net address |
| Length | 10 | 38 | 48 | 32 |
| Content example | 1111111011 | 0 | 0 | <IPv4 public network addresses> |
Data transmission processing method of the present invention is described in detail below.
As shown in figure 3, data transmission processing method embodiment of the present invention is comprised the following steps：
Step 302, user is arranged based on the data cube computation in terminal, and Jing SGSN send PDP context activation request and arrive
GGSN；
Step 304, GGSN is terminal distribution private IP address（Private network IPv4 asks source address）, and to data service gateway
Authentication module send authentication request packet, wherein authentication request packet include private network IPv4 request source address, session information, recognize
The data such as card information；Session information includes relevant information of the user in this communication, specifically includes：ID, access class
Type, cell ID etc.；
Step 306, authentication module receives the authentication request packet that GGSN sends, and is authenticated according to authentication request packet,
After certification success, the GGSN marks of source address inquiry GGSN, storage private network IPv4 request source addresses, meeting are asked according to private network IPv4
Words information and GGSN are identified, return authentication response message to GGSN；
Step 308, GGSN informs that user private network IPv4 requests source address is matched somebody with somebody to terminal responds PDP context activation result
Put, the information such as dns server；
Step 310, user initiates web access request in terminal；
Step 312, request is sent to GGSN, and the source IP address of its request message asks source ground for the private network IPv4 of terminal
Location, the public network IP v4 address that IPv4 request destination addresses are Web site；
Step 314, GGSN carries out tunnel encapsulation to the message, obtains service request message；
The service request message is encapsulated in tunnel and passes to data service gateway corresponding to this by step 316, GGSN
In the tunnel termination block of GGSN；
Step 318, tunnel termination block carries out the opening of tunnel encapsulation to the service request message（Solution tunnel encapsulation）, obtain
To an IPv4 request messages；First IPv4 request messages are converted to into an IPv6 request messages；Identified private according to GGSN
Net IPv4 requests source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 requests destination
Location；
Step 320, tunnel termination block sends an IPv6 request messages to processing module；
Step 322, processing module includes protocol processes submodule and application layer process submodule, protocol processes submodule tuber
Packet parsing is carried out according to set protocol mode, on the basis of concrete agreement is recognized, correlation is called successively according to service logic
Application layer process submodule request message is processed；
Step 324, after complete call, an IPv6 request messages are transmitted to modular converter by processing module；
Step 326, modular converter asks destination address to search real IP v4 request destination address according to IPv6, according to advance
IPv6 requests source address is converted to public network IP v4 request source address by the ATT of configuration, and by an IPv6 request messages
The 2nd IPv4 request messages are converted to, ask destination address and public network IP v4 to be asked comprising real IP v4 in the 2nd IPv4 request messages
Seek source address；
2nd IPv4 request messages are sent clothes corresponding to true IPv4 request destination addresses by step 328, modular converter
Business device；
Step 330, server is received after the 2nd IPv4 request messages, carries out Business Processing,；
Step 332, server returns modular converter of the IPv4 response messages to data service gateway；
Step 334, modular converter receives an IPv4 response messages, and an IPv4 response messages include IPv4 responses source ground
Location and IPv4 response destination addresses, wherein, IPv4 responses source address is that real IP v4 asks destination address, IPv4 responses destination
Location is that public network IP v4 asks source address；
Real IP v4 request destination address is converted to IPv6 request destination addresses by modular converter；Will according to ATT
Public network IP v4 request source address is converted to corresponding IPv6 requests source address；First IPv4 response messages are converted to into IPv6 responses
Message, source address and IPv6 request destination addresses are asked in IPv6 response messages comprising IPv6；
Step 336, modular converter sends IPv6 response messages to processing module；
Step 338, protocol processes submodule is according to IP five-tuples（Source IP address, source port, purpose IP address, destination
Mouth, transport layer protocol type）The recognition result of corresponding requests message or by protocol identification mode identification protocol；It is concrete in identification
On the basis of agreement, the application layer process submodule of correlation is called to process response message successively according to service logic（Such as：
Webpage fit, content compression, virus scan）；
Step 340, completes after application layer calls, and protocol processes submodule asks the GGSN marks in source address according to IPv6
IPv6 response messages are forwarded to into corresponding tunnel termination block；
Step 342, tunnel termination block asks the GGSN marks in source address to turn IPv6 request source addresses according to IPv6
It is changed to private network IPv4 request source addresses；IPv6 request destination addresses are converted to into real IP v4 request destination address；And by IPv6
Response message is converted to the 2nd IPv4 response messages；
Step 344, tunnel termination block carries out the 2nd IPv4 response messages to send right to GGSN marks after tunnel encapsulation
The GGSN for answering；
Step 346, GGSN carries out the tunnel encapsulation deblocking of message；
The message of IPv4 forms is transmitted to terminal by step 348, GGSN, and terminal can be normally received and processed from service
The response message of device.
Said method step is not only suitable for using the web access class business of HTTP modes, applies also for other agreements（Such as
RTSP agreements, Session Initiation Protocol）And related application.
When needing to add session information into the request message of server in transmission, processing module to authentication module is asked
The session information to be added, such as ID, access style, cell ID.This process can be referred to as information
Forward.As shown in figure 4, comprising the following steps including the data transmission processing method embodiment of information forward：
Step 402- step 420 is identical with step 302- step 320 in said method embodiment；
Step 422, processing module carries out parsing the business for obtaining an IPv6 request messages to an IPv6 request messages
Logic；
Step 424, when service logic is to insert forward pass information, processing module sends the letter that source address is asked comprising IPv6
Breath inquiry request message is to authentication module；
Step 426, authentication module receive information inquiry request message asks source address to parse GGSN marks according to IPv6
Source address is asked with private network IPv4；The session information that source address and GGSN mark inquiries are prestored is asked according to private network IPv4；
Generate the information inquiry response message comprising session information；
Information inquiry response message is sent to processing module by step 428, authentication module
Step 430, processing module receive information inquiry response message, it will words information is inserted into an IPv6 request messages
In, obtain the 2nd IPv6 request messages；
2nd IPv6 request messages are sent to modular converter by step 432, processing module；
Step 434- step 438 is identical with step 324- step 330 in said method embodiment；Will not be described here.
The data transmission processing method of the present invention, system and data service gateway, by increasing many in data service gateway
Individual tunnel termination block, each tunnel termination block is corresponding with a Gateway GPRS Support Node GGSN respectively, while in tunnel
Request message form is converted to into IPv6 by IPv4 in road termination block, request source address and destination address are also converted to by IPv4
IPv6 addresses, in processing module can the request message that sends of couple all GGSN being connected with data service gateway concentrate
Process, afterwards IPv6 messages are converted to into IPv4 messages in modular converter, be to send out behind IPv4 addresses by the address conversion of IPv6
It is sent to server.
Multiple tunnel termination blocks are set in data service gateway with the different GGSN of correspondence and using IPv6 addresses, are kept away
Exempt from IP address conflict, therefore, also avoid the need for increasing multiple data service gateways to access different GGSN.In addition, counting
Inside Service Gateway, it is not required that multiple processing modules are set, it is only necessary to a processing module, it is possible to pair with data service net
The request message that all GGSN that connection connects send is focused on, it is to avoid the collision problem of processing module implicit IP address.
The present invention is not changing original networking mode and routing mode, without the need for transforming terminal, GGSN and server
And on the premise of IPv6 forms need not be supported, extend the address space and service available GGSN of data service gateway
Quantity, reduces network construction cost, reduces the difficulty and cost safeguarded to gateway.
It should be noted that：Only to illustrate rather than restriction, the present invention is also not limited to above-mentioned above example
Citing, all technical schemes and its improvement without departing from the spirit and scope of the present invention, it all should cover the right in the present invention
In claimed range.
Claims (9)
1. a kind of data transmission processing method, it is characterised in that data service gateway includes multiple tunnel termination blocks, each tunnel
Road termination block is corresponding with a Gateway GPRS Support Node GGSN respectively, and data service gateway also includes processing module and turns
Mold changing block, the method includes：
The tunnel termination block receives the service request message that correspondence GGSN sends, and the carrying out of the service request message is solved
After tunnel encapsulation, obtain and ask source address and IPv4 to ask an IPv4 request messages of destination address comprising private network IPv4；Will
The first IPv4 request messages are converted to an IPv6 request messages；The private network IPv4 is asked according to GGSN marks
Source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 request destination addresses；Will be described
First IPv6 request messages are sent to the processing module；
The processing module performs Business Processing according to an IPv6 request messages, and an IPv6 request messages are turned
It is sent to the modular converter；
The modular converter asks destination address to search the real IP v4 request destination for wanting access server according to the IPv6
Location, public network IP v4 request source address is converted to according to the ATT being pre-configured with by IPv6 requests source address, and will
First IPv6 request messages are converted to the 2nd IPv4 request messages, and real IP v4 is included in the 2nd IPv4 request messages
Request destination address and public network IP v4 request source address；The 2nd IPv4 request messages are sent to real IP v4 request
The corresponding server of destination address；
The data service gateway also includes authentication module, and the method also includes：
The authentication module receives the authentication request packet that the GGSN sends, and the authentication request packet includes private network IPv4
Request source address, session information, authentication information；It is authenticated according to the authentication request packet, after certification success, according to described
Private network IPv4 request source addresses inquire about the GGSN marks of the GGSN, store the private network IPv4 requests source address, session information
With GGSN marks, return authentication response message to the GGSN.
2. data transmission processing method according to claim 1, it is characterised in that also include：
The modular converter receives the IPv4 response messages that the server carries out being returned after Business Processing, and described first
IPv4 response messages include IPv4 responses source address and IPv4 response destination addresses, and the IPv4 responses source address is described true
IPv4 asks destination address, and the IPv4 responses destination address is that public network IP v4 asks source address；By real IP v4
Request destination address is converted to the IPv6 requests destination address；Public network IP v4 is asked by source according to the ATT
Address conversion asks source address for the corresponding IPv6；The first IPv4 response messages are converted to into IPv6 response messages,
Source address and IPv6 request destination addresses are asked in IPv6 response messages comprising the IPv6；By the IPv6 response messages
Send to the processing module；
The processing module performs Business Processing according to the IPv6 response messages, is asked in source address according to the IPv6
The IPv6 response messages are forwarded to corresponding tunnel termination block by GGSN marks；
The tunnel termination block asks the GGSN marks in source address to turn IPv6 request source addresses according to the IPv6
It is changed to the private network IPv4 requests source address；IPv6 request destination addresses are converted to into the real IP v4 request destination
Location；And the IPv6 response messages are converted to into the 2nd IPv4 response messages；Tunnel is carried out to the 2nd IPv4 response messages
Send after encapsulation to the GGSN and identify corresponding GGSN.
3. data transmission processing method according to claim 1 and 2, it is characterised in that the IPv6 asks source address bag
Include GGSN marks and the request source addresses of the private network IPv4 of 32 of 48.
4. data transmission processing method according to claim 1 and 2, it is characterised in that also include：
The processing module is parsed to an IPv6 request messages, obtains the business of an IPv6 request messages
Logic；When the service logic is to insert forward pass information, the processing module sends asks source address comprising the IPv6
Information inquiring request message is to the authentication module；
The authentication module receives described information inquiry request message, asks source address to parse the GGSN according to the IPv6
Mark and the private network IPv4 ask source address；Source address and GGSN mark inquiries is asked to prestore according to the private network IPv4
Session information；Generate the information inquiry response message comprising session information and be sent to the processing module；
The processing module receives described information inquiry response message, and the session information is inserted into into the IPv6 requests
In message, the 2nd IPv6 request messages are obtained；The 2nd IPv6 request messages are sent to into the modular converter；
The modular converter asks destination address to search real IP v4 request destination address according to the IPv6, according to being pre-configured with
ATT IPv6 requests source address is converted to into public network IP v4 request source address, and by the 2nd IPv6 request messages
The 3rd IPv4 request messages are converted to, destination address and public affairs are asked comprising real IP v4 in the 3rd IPv4 request messages
Net IPv4 request source addresses；The 3rd IPv4 request messages are sent into clothes corresponding to real IP v4 request destination address
Business device.
5. data transmission processing method according to claim 1 and 2, it is characterised in that the session information includes：User
At least one in mark, access style, cell ID.
6. a kind of data service gateway, it is characterised in that include：Processing module, modular converter and multiple tunnel termination blocks, often
Individual tunnel termination block is corresponding with a Gateway GPRS Support Node GGSN respectively；
The tunnel termination block, for receiving the service request message that correspondence GGSN sends, to the service request message
After carrying out solution tunnel encapsulation, the IPv4 request reports that source address and IPv4 request destination addresses are asked comprising private network IPv4 are obtained
Text；The first IPv4 request messages are converted to into an IPv6 request messages；Identified the private network according to the GGSN
IPv4 requests source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 requests destination
Location；The first IPv6 request messages are sent to the processing module；
The processing module, for performing Business Processing according to an IPv6 request messages, by IPv6 requests
Message is forwarded to the modular converter；
The modular converter, wants real IP v4 of access server to ask mesh for asking destination address to be searched according to the IPv6
Address, according to the ATT being pre-configured with by the IPv6 request source address be converted to public network IP v4 request source address,
And an IPv6 request messages are converted to into the 2nd IPv4 request messages, comprising described true in the 2nd IPv4 request messages
IPv4 asks destination address and public network IP v4 request source address；The 2nd IPv4 request messages are sent to real IP v4
The corresponding server of request destination address；
Also include authentication module,
The authentication module, for receiving the authentication request packet that the GGSN sends, the authentication request packet includes private
Net IPv4 request source addresses, session information, authentication information；It is authenticated according to the authentication request packet, after certification success, root
Ask source address to inquire about the GGSN marks of the GGSN according to the private network IPv4, store the private network IPv4 requests source address, meeting
Words information and the GGSN are identified, and return authentication should arrive message to the GGSN.
7. data service gateway according to claim 6, it is characterised in that
The modular converter, is additionally operable to receive the IPv4 response messages that the server carries out being returned after Business Processing, institute
An IPv4 response messages are stated comprising IPv4 responses source address and IPv4 response destination addresses, the IPv4 responses source address is institute
Real IP v4 request destination address is stated, the IPv4 responses destination address is that public network IP v4 asks source address；Will be described true
Real IPv4 requests destination address is converted to the IPv6 requests destination address；According to the ATT by public network IP v4
Request source address is converted to the corresponding IPv6 and asks source address；The first IPv4 response messages are converted to into IPv6 responses
Message, source address and IPv6 request destination addresses are asked in IPv6 response messages comprising the IPv6；Should by the IPv6
Answer message to send to the processing module；
The processing module, is additionally operable to perform Business Processing according to the IPv6 response messages, and according to the IPv6 source ground is asked
The IPv6 response messages are forwarded to corresponding tunnel termination block by the GGSN marks in location；
The tunnel termination block, is additionally operable to be asked the GGSN marks in source address that the IPv6 is asked into source according to the IPv6
Address conversion is that the private network IPv4 asks source address；IPv6 request destination addresses are converted to into the real IP v4 request
Destination address；And the IPv6 response messages are converted to into the 2nd IPv4 response messages；The 2nd IPv4 response messages are entered
Send after row tunnel encapsulation to the GGSN and identify corresponding GGSN.
8. data service gateway according to claim 6, it is characterised in that
The processing module, is additionally operable to parse an IPv6 request messages, obtains the IPv6 requests report
The service logic of text；When the service logic is to insert forward pass information, the processing module is sent comprising IPv6 requests
The information inquiring request message of source address is to the authentication module；
The authentication module, is additionally operable to receive described information inquiry request message, asks source address to parse according to the IPv6
The GGSN marks and the private network IPv4 ask source address；Source address and GGSN mark inquiries are asked according to the private network IPv4
The session information for prestoring；Generate the information inquiry response message comprising specify information and be sent to the processing module；
The processing module, is additionally operable to receive described information inquiry response message, and the session information is inserted into into described first
In IPv6 request messages, the 2nd IPv6 request messages are obtained；The 2nd IPv6 request messages are sent to into the modular converter；
The modular converter, is additionally operable to ask destination address to search real IP v4 request destination address according to the IPv6, according to
IPv6 requests source address is converted to public network IP v4 request source address by the ATT being pre-configured with, and by the 2nd IPv6
Request message is converted to the 3rd IPv4 request messages, and purpose is asked comprising real IP v4 in the 3rd IPv4 request messages
Address and public network IP v4 request source address；The 3rd IPv4 request messages are sent to real IP v4 and asks destination address
Corresponding server.
9. a kind of data transmission processing system, it is characterised in that include：Multiple Gateway GPRS Support Node GGSN, data service
Gateway and server,
The data service gateway includes multiple tunnel termination blocks, and each tunnel termination block is relative with a GGSN respectively
Should, data service gateway also includes processing module and modular converter,
The tunnel termination block, for receiving the service request message that correspondence GGSN sends, to the service request message
After carrying out solution tunnel encapsulation, the IPv4 request reports that source address and IPv4 request destination addresses are asked comprising private network IPv4 are obtained
Text；The first IPv4 request messages are converted to into an IPv6 request messages；Identified the private network according to the GGSN
IPv4 requests source address is converted to IPv6 request source addresses；IPv4 request destination addresses point are converted to into IPv6 requests destination
Location；The first IPv6 request messages are sent to the processing module；
The processing module, for performing Business Processing according to an IPv6 request messages, by IPv6 requests
Message is forwarded to the modular converter；
The modular converter, wants real IP v4 of access server to ask mesh for asking destination address to be searched according to the IPv6
Address, according to the ATT being pre-configured with by the IPv6 request source address be converted to public network IP v4 request source address,
And an IPv6 request messages are converted to into the 2nd IPv4 request messages, comprising described true in the 2nd IPv4 request messages
IPv4 asks destination address and public network IP v4 request source address；The 2nd IPv4 request messages are sent to real IP v4
The corresponding server of request destination address；
The data service gateway also includes authentication module,
The authentication module, for receiving the authentication request packet that the GGSN sends, the authentication request packet includes private
Net IPv4 request source addresses, session information, authentication information；It is authenticated according to the authentication request packet, after certification success, root
Ask source address to inquire about the GGSN marks of the GGSN according to the private network IPv4, store the private network IPv4 requests source address, meeting
Words information and the GGSN are identified, and return authentication should arrive message to the GGSN.
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