Method for establishing IPv6 tunnel, IPv6 tunnel communication method, and Ipv4 periphery devices

An edge device and tunnel technology, applied in the field of data communication, can solve problems such as increasing configuration difficulty, restricting applications, and only providing point-to-point tunnels.

Active Publication Date: 2007-12-26
HEWLETT-PACKARD ENTERPRISE DEV LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the existing IPv6 tunneling technology is: usually only point-to-point tunneling can be provided; edge devices are required to support Multi Protocol Label Switching (MPLS, Multi Protocol Label Switch) technology or IPv4 / IPv6 dual text and IPv6 message forwarding and corresponding protocol message processing capabilities), and in order to enable edge devices to support MPLS technology or IPv4 / IPv6 dual protocol stack technology, it is generally necessary to replace or upgrade the hardware of existing edge devices; Most of the tunneling technologies encapsulate the part after the header (including the header) of the IPv6 message into the IPv4 message, and can only provide point-to-point tunnels, and some of the tunneling technologies need to configure IPv6 in a specific format for the edge device. address, which increases the difficulty of configuration and limits its application

Method used

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  • Method for establishing IPv6 tunnel, IPv6 tunnel communication method, and Ipv4 periphery devices
  • Method for establishing IPv6 tunnel, IPv6 tunnel communication method, and Ipv4 periphery devices

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Embodiment Construction

[0048] The present invention provides a method for establishing an IPv6 tunnel, an IPv6 tunnel communication method, and an IPv4 edge device. By transparently transmitting a layer-2 IPv6 message in an IPv4 network, the IPv4 edge device does not need to support IPv4 / IPv6 dual protocol stack technology or MPLS technology. , the communication of the IPv6 terminal through the IPv4 network can be realized. The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0049] FIG. 1 is a structural diagram of a network applying the IPv6 tunnel communication method described in the embodiment of the present invention. Figure 1 includes three local IPv6 networks 1-3 and one IPv4 network, and there are three IPv4 edge devices A, B and C running IPv4 protocols at the edge of the IPv6 network and the IPv4 network. Among them, IPv6 devices a1 and a2 belong to IPv6 network 1 and are respectively connected to IPv4 edge ...

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Abstract

The invention is used to realize the transparent transmission of layer-two IPv6 message in IPv4 network so as to realize the IPv6 message to cross over IPv4 network.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a method for establishing an Internet Protocol version 6 (IPv6, Internet Protocol version 6) tunnel, an IPv6 tunnel communication method and an Internet Protocol version 4 (IPv4, Internet Protocol version 4) edge device. Background technique [0002] At present, the deployment of IPv6 networks has been carried out on a global scale. With the development of IPv6 networks, many local IPv6 networks appear in the existing networks. These IPv6 networks may be connected through backbone networks running IPv4 protocols. In order to enable these isolated "IPv6 islands" to communicate with each other, a solution proposed in the prior art is to use IPv6 tunneling technology to realize communication of IPv6 packets across the IPv4 network. [0003] The IPv6 tunnel technology encapsulates IPv6 packets into IPv4 packets, so that IPv6 packets can be communicated across the IPv4 netw...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L1/00H04L12/56H04L29/06H04L45/50
Inventor 刘经伦
Owner HEWLETT-PACKARD ENTERPRISE DEV LP
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