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Method for large-scale networking of dynamic virtual private network (DVPN) and client

A client-side, large-scale technology, applied in the field of communication, can solve problems such as limited dynamic routing protocol specifications, complex routing configuration, and large system overhead, so as to reduce system overhead, reduce routing configuration, and relieve the dependence of dynamic routing protocols Effect

Active Publication Date: 2012-07-18
NEW H3C TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0007] In the existing solution, the Hub needs to establish routing neighbors with each Spoke. In a large-scale network, the Hub needs to maintain a large number of routing neighbors and routing information. The system overhead is large, the routing configuration is complicated, and it is limited by the specifications of the dynamic routing protocol.

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  • Method for large-scale networking of dynamic virtual private network (DVPN) and client
  • Method for large-scale networking of dynamic virtual private network (DVPN) and client
  • Method for large-scale networking of dynamic virtual private network (DVPN) and client

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0022] The present invention proposes a method for large-scale DVPN networking. The networking includes VAM clients and VAM servers. Each VAM client registers with the VAM server, and carries its own private network gateway address, public network address and downlink address when registering. Hang the subnet network segment. Among them, the private network gateway address is the address of the tunnel interface; the public network address is the source interface address of the tunnel interface; the subnets connected to each VAM client need to be planned in advance to avoid conflicts. The VAM server records the private network gateway address, public network address, and subnet network segment carried by each VAM client when it registers...

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Abstract

The invention discloses a method for the large-scale networking of a dynamic virtual private network (DVPN). The method comprises the following steps that: each virtual private network address management (VAM) client carries own sub-network segment when registered in a VAM server; and a source VAM client to access a destination VAM client resolves the next-hop address of a sub-network of the VAM server to obtain the public network address and sub-network segment of the destination VAM client and further establish a dynamic DVPN tunnel. Based on the same inventive concept, the invention also discloses a client. The flexibility of the networking of the DVPN is improved, and the system overhead and routing configuration of a Hub in the large-scale network are reduced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method and a client for DVPN large-scale networking. Background technique [0002] More and more enterprises have more and more demands for using public network to set up VPN, but in many cases, a branch of an enterprise uses a dynamic address to access the public network, and cannot know the public network address of the opposite end in advance, so it is difficult to establish Direct mutual access tunnels between branches. The DVPN solution solves the need to establish direct tunnels between branches of the enterprise network when they use dynamic addresses to access the public network. [0003] The DVPN solution consists of VAM protocol and dynamic point-to-multipoint tunnel. The VAM protocol is the main protocol of the DVPN solution, responsible for collecting, maintaining, and distributing information such as public network addresses, and helping users quick...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L29/12H04L45/74
CPCH04L12/4641H04L12/6418H04L12/4633H04L61/50H04L63/0272
Inventor 杨银柱王占群
Owner NEW H3C TECH CO LTD
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