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Method for selecting IPv4-IPv6 protocol translation module, apparatus and terminal thereof

A technology of ipv4-ipv6 and protocol translation, applied in the field of computer network, can solve the problems of not being able to know, not being able to communicate, etc.

Active Publication Date: 2011-11-23
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are multiple PNAT64 GWs in the network architecture, the terminal cannot obtain the correct PNAT64 GW address prefix, resulting in the failure of subsequent communication

Method used

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  • Method for selecting IPv4-IPv6 protocol translation module, apparatus and terminal thereof
  • Method for selecting IPv4-IPv6 protocol translation module, apparatus and terminal thereof
  • Method for selecting IPv4-IPv6 protocol translation module, apparatus and terminal thereof

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Embodiment 1

[0078] Embodiments of the present invention provide a method for selecting an IPv4-IPv6 protocol translation module, such as figure 1 As shown, the method includes the following steps:

[0079] 101. When an IPv4 application on a dual-stack terminal starts, send a request message to a network element of the IPv6 core network, where the request message includes a service identifier to be accessed by the IPv4 application.

[0080] At this time, the network element of the IPv6 core network receives the request message sent by the dual-stack terminal.

[0081] 102. The network element of the IPv6 core network extracts the service identifier from the request message.

[0082] 103. The network element of the IPv6 core network queries the PNAT64 GW address prefix corresponding to the service identifier in a preset dynamic mapping table. The preset dynamic mapping table stores records of service identifiers and corresponding PNAT64GW address prefixes.

[0083] 104. When the network ...

Embodiment 2

[0095] The embodiment of the present invention assumes that the application scenario is that the DNS server maintains and manages a dynamic mapping table. The user terminal is a dual-stack terminal. When the UE starts one of the IPv4 applications, it will interact with the IPv6 core network to establish a bearer, and then the UE sends the DNS server A DNS resolution request is sent, and while the DNS server resolves the destination address, it returns the identifier of the protocol conversion module to be used and corresponding parameters to the UE according to the service identifier of the above-mentioned IPv4 application.

[0096] The embodiment of the present invention assumes that the networking structure is as follows image 3 As shown, among them, AAA (Authentication Authorization Accounting, authentication, authorization, accounting) is used to verify the user's identity and available network services, open network services to users according to the authentication result...

Embodiment 3

[0141] The embodiment of the present invention assumes that the application scenario is in a GPRS network, the GGSN maintains and manages a dynamic mapping table, and the user terminal is a dual-stack terminal. When the UE starts one of the IPv4 applications and triggers the PDP Context activation process, the PDP Context activates The service identifier is carried in the request message.

[0142] The embodiment of the present invention assumes that the networking structure is as follows Figure 7 As shown, wherein, SGSN (Serving GPRS SupportNode, server GPRS support node) is a mobile core network PS domain functional node, mainly providing functions such as route forwarding, mobility management, session management, authentication, and encryption in the PS domain. GGSN is a functional entity in the GPRS core network, which provides routing and encapsulation of data packets between the mobile network and the external data network.

[0143] In this embodiment, the procedure for...

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Abstract

The invention, which relates to the computer network technology field, discloses a method for selecting an IPv4-IPv6 protocol translation module, an apparatus and a terminal thereof. When a plurality of prefix NAT v6 to v4 gateways (PNAT64 GW) exist, a dual stack terminal can acquire a correct PNAT64 GW address prefix. The method comprises the following steps: receiving a request message transmitted by the dual stack terminal, wherein the request message carries service identification applied by IPv4 on the dual stack terminal; extracting the service identification from the request message; querying the PNAT64 GW address prefix which is corresponding to the service identification in a preset dynamic mapping table; adding the PNAT64 GW address prefix which is queried to a response message; sending the response message to the dual stack terminal. Embodiments of the invention are mainly applied in a protocol translation process from the IPv4 to IPv6.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a method, device and terminal for selecting an IPv4-IPv6 protocol translation module. Background technique [0002] Currently, the version number of the IP protocol adopted by the Internet is 4, referred to as IPv4 for short. With the vigorous development of the Internet, the demand for IP addresses is also increasing, and the new generation of Internet protocol IPv6 has emerged, and the demand for deploying IPv6 networks in the existing IPv4 networks is also increasing. The coexistence of IPv4 network and IPv6 network. In order to realize that IPv4 applications on terminals can access IPv6 services or IPv4 services through the IPv6 core network, the prior art provides the following technical solutions: [0003] When it is necessary to implement IPv4 applications to access IPv6 services through the IPv6 core network, the BIS / BIA protocol translation module is used. A...

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 杨健王雷郜文美
Owner HUAWEI DEVICE CO LTD
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