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Access method for IPv6 client to IPv4 server

A client-server technology, applied in electrical components, transmission systems, etc., can solve the problems of incompatibility between IPv6 protocol and IPv4 protocol, inability to achieve interconnection, inability to access IPv4 network information resources, etc., to maintain the uniqueness of mapping, promote transition effect

Active Publication Date: 2014-06-11
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to various reasons, the IPv6 protocol is incompatible with the IPv4 protocol, and the interconnection and intercommunication between the two cannot be realized. Therefore, a method or technology is needed to realize the transition from IPv4 to IPv6
The industry has tried to use the "dual protocol stack" method to solve the problem of interconnection and intercommunication, but the experience and lessons of IPv6 promotion in the past ten years have proved that it is impossible to access many IPv4 network information resources and cannot communicate with many IPv4 users
[0004] In the prior art, IPv4 / IPv6 address and protocol translation technology can be used, based on the stateless address translation and protocol translation method, to realize the access from the IPv6 client to the IPv4 server, which has scalability, but the stateless address translation method requires IPv6 The client uses a specific IPv6 address, so it cannot support arbitrary addresses on the IPv6 Internet to access the IPv4 server

Method used

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  • Access method for IPv6 client to IPv4 server
  • Access method for IPv6 client to IPv4 server
  • Access method for IPv6 client to IPv4 server

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Embodiment Construction

[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] The embodiment of the present invention provides a method for an IPv6 client to access an IPv4 server. The steps are as follows: figure 1 As shown, it specifically includes the following steps:

[0037] Step S1, setting up a translation gateway between the IPv4 server and the IPv6 Internet, and establishing a mapping relationship table between IPv6 addresses and IPv4 public addresses according to the one-way function.

[0038] Step S2, the IPv6 client in the IPv6 Internet sends the first type of IPv6 packet.

[0039] Step S3, the translation gateway receives the first type of IPv6 packet, and maps the source address of the first type of IPv6 packet, the source por...

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PUM

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Abstract

The invention discloses an access method for an IPv6 client to an IPv4 server. Through a stateless IPv4 / IPv6 address and protocol translation method, the public IPv4 address of the IPv4 server is mapped into a specific IPv6 address, any IPv6 address of the IPv6 internet is mapped into an IPv4 private address 10.0.0.0 / 8 through a one-way function, and the mapping relation is recorded so as to form a mapping relation table, so that any IPv6 address of the IPv6 internet can get access to the IPv4 server at no state, the stateless translation technology keeps the mapping unique, extendable and traceable, under the condition that the mapping relation table is generated and is valid, bi-directional communication is supported, and the transition from IPv4 to IPv6 is effectively promoted.

Description

technical field [0001] The invention relates to the technical field of computer network communication, in particular to a method for an IPv6 client computer to access an IPv4 server. Background technique [0002] Currently, the fourth version of the network protocol IPv4 widely used on the Internet has an addressing range of only 2 32 , that is, 4.3 billion addresses, which have been allocated at present. In order to solve the problem of insufficient IPv4 addresses, the Internet Engineering Task Force (IETF for short) designed the sixth version of the network protocol IPv6, and its addressing range is 2 128 , can completely solve the problem of insufficient IPv4 addresses. [0003] However, due to various reasons, the IPv6 protocol is incompatible with the IPv4 protocol, and the interconnection and intercommunication between the two cannot be realized. Therefore, a method or technology is needed to realize the transition from IPv4 to IPv6. The industry has tried to use th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
Inventor 包丛笑李星韩国梁
Owner TSINGHUA UNIV
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