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Method and system for changing IP flow protocol stack

A protocol stack and flow technology, applied in the field of telecommunications, can solve problems such as access errors, and achieve the effect of increasing speed and increasing demand

Active Publication Date: 2013-01-16
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you want to change the domain name resolution results of all subdomains, you must edit a large number of DNS configuration file entries, which may cause access errors

Method used

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  • Method and system for changing IP flow protocol stack
  • Method and system for changing IP flow protocol stack
  • Method and system for changing IP flow protocol stack

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Embodiment Construction

[0022] As far as IPv6 is concerned, there are currently few information sources, so IPv6 traffic is very small and the network is too lightly loaded. Therefore, the demand for IPv6 equipment is small and there are few users, which inhibits the development of IPv6 information sources and leads to slow deployment of IPv6 by operators. This is a vicious circle. However, there are a large number of information sources in the IPv4 network, and they can be fully utilized to develop the IPv6 network.

[0023] Through the present invention, when the IPv4 / IPv6 dual-stack host accesses a certain IPv4 information source, the flow is in the IPv6 network, that is, the flow automatically selects the IPv6 protocol stack instead of the IPv4 protocol stack. The key point is the dual-stack proxy server, that is, the communication between the dual-stack host and some IPv4 information sources is relayed through the proxy.

[0024] The present invention will be described in detail below with reference...

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Abstract

The invention provides a method and a system for changing an IP flow protocol stack. The method comprises the following steps: acquiring a conversion list from a DNS control server and storing the conversion list when an IPv4 / IPv6 dual stack host initiates IPv4 information source domain name inquiry, and storing the corresponding relation of an IPv4 information source domain name to be converted and an IPv4 / IPv6 dual stack proxy server in the conversion list; searching the IPv6 address of the IPv4 / IPv6 dual stack proxy server which corresponds to the IPv4 information source domain name to be inquired, taking the address as the IPv6 address of an IPv4 information source, and initiating the request for acquiring the IPv4 information source by the IPv4 / IPv6 dual stack host to the IPv4 / IPv6 dual stack proxy server; acquiring the information from the IPv4 information source by the IPv4 / IPv6 dual stack proxy server, and returning an IP flow to the IPv4 / IPv6 dual stack host through an IPv6 network. The invention introduces a large quantity of IPv4 information sources into the IPv6 network.

Description

Technical field [0001] The invention belongs to the field of telecommunications, and in particular relates to a method and system for changing the protocol stack used for IP traffic. Background technique [0002] At present, IP network operators have begun to deploy IPv4 / IPv6 dual-stack networks (IPv4: Internet Protocol version 4, Internet Protocol version 4, IPv6: Internet Protocol version 6, Internet Network Protocol version 6), but IPv4 / IPv6 dual-stack hosts are accessing When the information source in the IPv4 network, the IP traffic will automatically select the IPv4 protocol stack. [0003] figure 1 An example of a dual-stack host accessing information sources is given in. First, the host initiates a DNS (Domain Name System) request to resolve the address of the information source. Since the information source is in the IPv4 network, an IPv4 address must be returned. Then the host operating system automatically selects the IPv4 protocol stack to send data packets and commu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04L29/06H04L29/12
Inventor 冯明王爱宝刘广义杨国良唐宏徐建锋
Owner CHINA TELECOM CORP LTD
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