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Method for realizing intra site automatic tunnel addressing protocol and device thereof

An implementation method, the technology of the internal gateway protocol, applied in the field of automatic tunnel addressing protocol implementation in the site, can solve problems such as troublesome and inability to guarantee the best route, and achieve the effect of reducing the cost of network upgrades

Inactive Publication Date: 2012-12-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to avoid the problem of single point failure, multiple ISATAP routers can be deployed in an IPv4 site to provide services for the ISATAP hosts in the site. Even if a certain ISATAP router fails, other ISATAP routers can be used to provide services for the ISATAP hosts. The ISATAP router address needs to be reconfigured for the ISATAP host, which is cumbersome and does not guarantee the best route from the ISATAP host to the reconfigured ISATAP router

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  • Method for realizing intra site automatic tunnel addressing protocol and device thereof
  • Method for realizing intra site automatic tunnel addressing protocol and device thereof
  • Method for realizing intra site automatic tunnel addressing protocol and device thereof

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Embodiment Construction

[0050] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0051] Embodiments of the present invention aim at the problem in the prior art that the ISATAP router address needs to be reconfigured for the ISATAP host in order to avoid a single point of failure, and provide an ISATAP implementation device and method, which can solve the problem of a single point of failure, and avoid reconfiguring the address of the ISATAP host for the ISATAP host. Configure the ISATAP router address.

[0052] image 3 Shown is the schematic flow chart of the implementation method of ISATAP in the embodiment of the present invention, and the present embodiment is used in a network including at least two ISATAP routers using the same IPv4 address, such as image 3 As shown, this embodiment includes:

[0053] Ste...

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Abstract

The invention provides a method for realizing an intra site automatic tunnel addressing protocol (ISATAP) and a device thereof, which belong to the filed of data communication. The method for realizing the ISATAP comprises the following steps of: when the ISATAP tunnel, which an ISATAP router corresponds to, is available, generating an IPv6 anycast address which corresponds to an ISATAP tunnel and comprises an IPv4 address; storing the IPv6 anycast address and generating an anycast address prefix according to the IPv4 address; and informing the anycast address prefix to all the IPv4 routers in the IPv4 site. The embodiment of the invention can solve the problem of single point of failure and avoid the reconfiguration of the ISATAP router address for an ISATA host. The technical scheme of the invention can be applied in an IPv6 scene through network interconnection with IPv4 network.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method and device for realizing an automatic tunnel addressing protocol in a site. Background technique [0002] Intra-Site Automatic Tunnel Addressing Protocol (Intra-Site Automatic Tunnel Addressing Protocol, hereinafter referred to as ISATAP) is an Internet Protocol version 6 (Internet Protocol version 6, Hereinafter referred to as IPv6) network interconnection scheme, figure 1 An application scenario of ISATAP is described: an IPv4 site accesses the IPv6 network through two V6 / V4 dual-stack routers, and user host 1 (100-1) in the IPv4 network has installed the V6 / V4 dual-stack. The ISATAP protocol is installed on the edge dual protocol stack router 120-1 in the IPv4 network, and the host 1 also runs ISATAP, then the host 1 can access the IPv6 network through ISATAP, and its working principle is as follows figure 2 shown. [0003] First, configure the IPv4 address 1.2.2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L12/56H04L12/24H04L45/741
Inventor 刘晓东
Owner ZTE CORP
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