Virtual special network system of mixed station mixed skeleton network and its realizing method

Abstract

A VPN system of a hybrid-site hybrid backbone network and an implementing method thereof about VPN technology, which enables the sites based on different IP versions to access each other and to develop VPN service via the backbone network based on different IP versions. It can solve the develop problem of VPN service of hybrid network during the transition period. The VPN system of a hybrid-site hybrid backbone network and the implementing method thereof divide the autonomous domain of the multi-domain backbone network into the primary and the dependent, issue the route using the corresponding MP-IBGP according to the IP version of the own autonomous domain in the autonomous domains, and issue the route using Multi-hop MP-EBGP between the adjacent autonomous domains. Synchronously, they perform IPv4 / IPv6 double routing list on CE and PE, and perform the tunnel forwarding of the VPN data according to their IP version distribution label in the autonomous domains. So it can implement VPN of the hybrid-site multi-domain backbone network.

Description

technical field [0001] The present invention relates to a virtual private network technology, and particularly relates to the conversion of user sites and backbone networks from Internet Protocol version 4 (Internet Protocol version 4, referred to as "IPv4") to Internet Protocol version 6 (Internet Protocol version 6, referred to as "IPv4") IPv6") virtual private network technology during evolution. Background technique [0002] A VPN is a virtual private network established on a public network, which has the same excellent security, reliability and ease of management as a private network. VPN replaces the traditional dial-up access, and uses the Internet (Internet) public network or operator network resources as the continuation of the private network of the enterprise, saving expensive leased line fees. At the same time, VPN can use technologies such as tunneling protocol, authentication and data encryption to ensure communication The security is welcomed by enterprise us...

AI Technical Summary

Problems solved by technology

[0019] In view of this, the main purpose of the present invention is to provide a virtual private network system and its implementation method of mixed site mixed backbone network, so that sites based on different IP versions can visit each other and carry out VPN based on the backbone network based on different IP versions. business, to solve the problem of developing hybrid network VPN business during the transition period

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