System and method for virtual special net user to access public net

A virtual private network and public network technology, applied in transmission systems, digital transmission systems, network interconnection, etc., can solve the problems of lack of access to the Internet, can not meet the needs of VPN users to access the Internet, and has not been resolved, and achieve the solution of private The effect of network address overlap

Inactive Publication Date: 2007-10-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Access to the Internet through MPLS L3VPN has been widely used, but access to the Internet through VPLS has not been resolved
For VPLS applications, the lack of access to the Internet obviously cannot meet the growing needs of VPN users to access the Internet

Method used

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  • System and method for virtual special net user to access public net
  • System and method for virtual special net user to access public net

Examples

Experimental program
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Embodiment Construction

[0062] The core of the system and method for the virtual private network users to access the public network of the present invention is: setting the virtual private LAN network segment VPLS users to centrally access the user edge equipment CE and provider edge equipment PE of the public network, and the CE is connected to the PE The interface of the PE is set with a public IP address, the interface of the PE connected with the CE with a public IP address is the CE public gateway, and the CE and PE pass through the interface with the public IP address and the CE public gateway The interface performs Ethernet packet transmission between VPLS users and the public network.

[0063] The following is a further description of the system and method for VPLS (Virtual Private LAN Network Segment) users to access the public network provided by the present invention based on the core idea of ​​the present invention and in conjunction with FIG. 2.

[0064] The schematic diagram of the applicat...

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Abstract

The method comprises: the VPLS users in virtual private LAN network segment accesses public network through client edge (CE) device and provider edge (PE) device; the public network IP address is set in the interface of connecting CE and PE; a CE public gateway is connected to the interface of connecting CE and PE in order to make message transmission between VPLS user and public network. By the invention VPLS users can access public network.

Description

Technical field [0001] The invention relates to the technical field of network communication, in particular to a system and method for a virtual private network user to access the public network. Background technique [0002] VPLS (Virtual Private LAN Segments) is a VPN service. Its main function is to interconnect the LAN network segments of different locations in an enterprise to make it a large LAN. Typical VPLS network diagram As shown in Figure 1. [0003] In Figure 1, the network topology of VPLS is similar to that of VPRN (virtual routing network). PE devices are fully connected through tunnels, except that the edge nodes of VPRN complete the three-layer routing function, while the edge nodes of VPLS complete the second The layer bridging function can realize address learning, broadcasting and other functions. In this way, a local area network running layer 2 protocol is virtualized through VPLS, which brings a big advantage-completely transparent to layer 3 protocol, suit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/66H04L12/46H04L12/56
CPCH04L12/4641H04L45/00
Inventor 刘珺业苏宁
Owner HUAWEI TECH CO LTD
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