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Message forwarding method and equipment

A message forwarding and message technology, applied in the field of communication, to avoid re-planning and reduce pressure

Active Publication Date: 2012-07-04
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] When there is a branch area and each device in the area is connected separately, it will cause a lot of VPN maintenance pressure on the routers in the headquarters.

Method used

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  • Message forwarding method and equipment
  • Message forwarding method and equipment

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Embodiment Construction

[0023] 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.

[0024] The present invention proposes a message forwarding method, which is applied to a three-layer branch network based on L2TP tunnels. After an L2TP access concentrator (LAC) establishes an L2TP tunnel with an L2TP network server (LNS), it obtains the LNS allocation during the session establishment process. The client address of the self-applied quantity, and record the obtained client address as the private network source address, obtain the routing information of the headquarters server sent by the LNS, and use the L2TP tunnel interface as the outgoing interface of the route; The LAC obtains the LAC address allocated by the LNS, and uses the LAC address as its own L2TP tunnel address. When the LNS allocates the LAC address, it gene...

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Abstract

The invention discloses a message forwarding method and equipment which are applied to an L2TP (Layer-2 Tunneling Protocol)-based three-layer branch network. An LAC (L2TP Access Concentrator) obtains the client-side addresses distributed by an LNS (L2TP Network Server) during the process of establishing a session between the LAC and the LNS, and records the client-side addresses as private network source addresses, wherein the number of the client-side addresses is applied by the LNS; and when service terminals need to access a headquarters server, the recorded private network source addresses are distributed to corresponding service terminals, and the service terminals carry out communication with the headquarters server through two-layer IP (Internet Protocol) packages. With the adoption of the message forwarding method and the message forwarding equipment, the pressure of a headquarters router in the maintenance of a plurality of VPNs (Virtual Private Networks) can be lowered, and the trouble of coordinating the re-planning of the IP address fields of a plurality of branch mechanisms is avoided.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a message forwarding method and device. Background technique [0002] With the development of the network process and the increase in the demand for information integration, the integration of branches often occurs. However, due to the shortage of Internet Protocol (IP) address segments and the independence of management, branch offices usually adopt independent address segment planning, which often happens. [0003] Existing solutions usually adopt network address translation (NAT), which does not involve re-planning of address segments and saves the overhead of address segments. However, with the development of various new services, such as the deployment of IP monitoring, many messages carry IP addresses inside, which requires the NAT device to be continuously upgraded to identify and modify the IP addresses inside the messages, which is obviously very troublesome. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/56H04L29/12H04L29/06H04L45/74
Inventor 林鹏程周迪
Owner NEW H3C TECH CO LTD
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