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Method and system for accessing IPv4 resource through IPv6 address

A technology of ipv6 address and ipv4 address, which is applied in the Internet field to achieve the effect of alleviating the consumption problem

Inactive Publication Date: 2017-01-11
下一代互联网重大应用技术(北京)工程研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0011] As mentioned above, the IVI service uses stateless address translation, but it has two disadvantages. One is that a real public network IPv4 address is required for translation, and the other is that IVI technology only supports IPv6 source addresses under a specific IPv6 prefix. IVI address, not an arbitrary IVI address
This makes the application of IVI have great limitations

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  • Method and system for accessing IPv4 resource through IPv6 address
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  • Method and system for accessing IPv4 resource through IPv6 address

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. According to the embodiment of the present invention, it is possible to access the IPv4 network from any place in a pure IPv6 environment.

[0041]IVI is a protocol conversion technology based on SIIT, which can solve the network layer translation of IPv6 network and IPv4 network data packets. The main idea of ​​IVI is to map a part of addresses from the global IPv4 address space (IPG4) to the global IPv6 address space (IPG6), such as figure 1 shown. In IPG4, each operator takes out a part of IPv4 addresses for use in IVI transition conversion, and this part of IPv4 addresses taken out is called IVI4 addresses, which cannot be assigned to actual real hosts. As the transition progresses, the scope of IVI4 is gradually expa...

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Abstract

The invention discloses a method and system for accessing an IPv4 resource through an IPv6 address. The system comprises an IPv6 client, a VPN server, an IVI server and a router, wherein the IPv6 client is configured with the IPv6 address; the VPN server communicates with the IPv6 client through a tunnel and is connected with the IVI server through a network cable; the VPN server is used for receiving an IPv6 data packet sent by the IPv6 client and forwards the IPv6 data packet to the IVI server, receives the IPv6 data packet sent by the IVI server and forwards the IPv6 data packet to the IPv6 client; the VPN server is also taken as an entry router for accessing an IPv6 network; the IVI server is connected with the VPN server and the router through network cables and is used for carrying out mutual conversion between an IVI 4 address in an received IPv4 address and the IVI6 address in the IPv6 address; the router is connected with the IVI server through the network cable and is taken as the entry router for accessing the IPv4 network; and the IVI4 address is a private network address.

Description

technical field [0001] The present invention relates to the technical field of the Internet, more specifically, to a method and system for accessing IPv4 resources based on an IPv6 address accessed by a private network (VPN tunnel and IVI), and supports wired pure IPv6, wired dual-stack, wireless pure IPv6 and wireless Dual-stack four access methods. Background technique [0002] The existing Internet is mainly based on the IPv4 protocol, which has successfully contributed to the rapid development of the Internet. However, as the number of Internet users continues to increase and the requirements for Internet applications continue to increase, the shortcomings of IPv4 are gradually highlighted. The contradiction between the ever-growing huge demand for Internet address resources and the shortage of IPv4 address space is getting deeper and deeper, and the currently available IPv4 addresses have been exhausted. The use of the IPv6 protocol with a length of 128 bytes of IP ad...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L12/46
CPCH04L61/251H04L12/4633H04L12/4641
Inventor 黄友俊李星吴建平曲永丽
Owner 下一代互联网重大应用技术(北京)工程研究中心有限公司
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