P2P operator and campus network router combined IPv4/IPv6 grouping conversion method

Abstract

An IPv4 / IPv6 packet switching method combining end-to-end operator and campus network router is characterized in that first class coding format is adopted for embedding the IPv4 address and transmission layer port in IPv6 address; a unique mapping relation is established between subclass of IPv6 address and subclass of operator about IPv4 address and transmission layer port; a second class codingis adopted to embedding the IPv4 address in IPv6 address; a unique mapping relation between subclasses of global IPv4 address and IPv6 address of operator is established. A first class switching method is adopted between network border of global IPv4 network and IPv6 network of operator; a second class switching method of minimum status is adopted on IPv6 campus network border to enable multiple IPv6 campus network user accessed to IPv6 network to share IPv4 address and perform end-to-end communication with global IPv4 network and simultaneously all-function communication with global IPv6 network.

Description

technical field [0001] The IPv4 / IPv6 packet conversion method of end-to-end carrier-level and park network router combination belongs to the technical field of computer network. Background technique [0002] The Internet has become the most important information infrastructure in the world, but the addressing range of IPv4, the fourth version of the network protocol widely used on the Internet, is only 2 32 , that is, 4.3 billion addresses. According to the current allocation speed of IPv4 addresses, it is estimated that after 2011, IPv4 addresses will be allocated soon. [0003] At present, the absolute number of Internet users in China has become the first in the world, but the penetration rate of the Internet is only 19%, lower than the average level of the world (21%), and far lower than the level of developed countries in the world (70%). At the same time, each Chinese Internet user has only 0.6 IPv4 addresses on average. Therefore, for China, IPv4 addresses cannot me...

AI Technical Summary

Problems solved by technology

The stateless address conversion and protocol conversion method is scalable, but it adopts 1:1 address mapping between IPv4 and IPv6, which cannot effectively utilize the scarce IPv4 address resources, so it can only be used for IPv6 servers to IPv4 Address mutual access from server or client and IPv4 server / client to IPv6 server

The method of stateful address conversion and protocol conversion can support 1:N mapping between IPv4 and IPv6 addresses, and the scalability is slightly better than NAT-PT, but it only supports communication initiated by IPv6 clients, which has great advantages. limitation

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