Method for intercommunication between IP V6 network and IPV4 network based on transit mechanism

A technology of inter-network intercommunication and mechanism, applied in the Internet field, can solve the problems of poor scalability and achieve the effect of solving scalability problems

Inactive Publication Date: 2006-01-04
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of poor scalability of existing IPv4 network and IPv6 network intercommunication methods, and provide a new technical method for communication between IPv4 networks and IPv6 networks

Method used

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  • Method for intercommunication between IP V6 network and IPV4 network based on transit mechanism
  • Method for intercommunication between IP V6 network and IPV4 network based on transit mechanism
  • Method for intercommunication between IP V6 network and IPV4 network based on transit mechanism

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Experimental program
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Embodiment Construction

[0053] The present invention realizes according to the following steps:

[0054] Step 1.IPv6 host A6 can obtain the IPv6 form of the address of IPv4 host A4 through DNS or the mode of configuration, namely PRFX:A4::;

[0055] Step 2. The IPv6 host uses the PRFX:A4::PRFX:A4:: address as the destination address of the packet, and sends the packet PKT6. The PKT6 packet is used as input to reach the 4over6 router under the action of the 4over6 pseudo-IPv6 route;

[0056] Step 3.4 After the over6 router receives the PKT6 packet, according to its source and destination address characteristics, that is, the destination address is a pseudo-IPv6 address, it judges that PKT6 is a pseudo-IPv6 packet that needs to be translated, and uses step 4 to translate the packet into an IPv4 packet PKT4 ;

[0057] Step 4. According to the IPv6 packet header in the PKT6 packet, construct a new IPv4 packet header and a 4over6 packet header, the source address of the IPv4 packet header is obtained fr...

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Abstract

An inter-network communication method between IPV6 and IPV4 of a transition system characterizes that it is realized on the basis of 40ver6 transition system, namely, a set of 40ver6 router is set between IPV 4 and IPV6 networks, a 40ver6 packet translation module and a DNS applied gateway are matched in the router, the IPV4 node keeps the IPV6 information contained in the IPV4 packet to maintain the reached information of IPV4 network in IPV6 network to ensure end-to-end communication among different networks.

Description

technical field [0001] A method for intercommunication between an IPv6 network and an IPv4 network based on a transition mechanism belongs to the technical field of the Internet. Background technique [0002] At present, the methods for realizing intercommunication between IPv6 and IPv4 networks include NAT-PT defined in RFC2766, translation in the protocol stack (BIS) defined in RFC2767, application layer gateway (SOCKS64) defined in RFC3089, and TCP / IP defined in RFC3142. UDP relay, application interface translation (BIA) defined in RFC3338, etc. A common disadvantage of these methods is that they need to maintain the status information of both parties in the router system for protocol translation, and allocate resources for each request, so they all have single point of failure and scalability issues, and are not suitable for large-scale applications. used in the network. With the continuous development of the IPv6 network, a large-scale IPv6 network has appeared, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56H04L29/12
Inventor 崔勇吴建平王晓峰
Owner TSINGHUA UNIV
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