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Method and system for communication between gateway device

A gateway device and device technology, applied in the field of virtual private network, can solve the problems of increasing data stream transmission delay, reducing data stream transmission speed, increasing the business load of the main gateway device, etc.

Active Publication Date: 2006-10-25
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In this way, the main gateway device must carry out a series of processes for forwarding data streams, such as decrypting received data streams, looking up routing tables, and encrypting data streams. The business load of the gateway device
In addition, since the data flow between the slave gateway devices must be forwarded through the master gateway device, the transmission delay of the data flow is increased and the transmission speed of the data flow is reduced.

Method used

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  • Method and system for communication between gateway device
  • Method and system for communication between gateway device

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Embodiment Construction

[0086] The present invention proposes a method for communicating between slave gateway devices in a VPN using tunnel technology of more than four layers. The core idea is: the master gateway device sets any two slave gateway devices as the server side; The master gateway device sends the address information of the slave gateway device set as the server to the slave gateway devices of the two slave gateway devices as the client; the slave gateway device as the client compares the received address information with the slave gateway device set as the server The device establishes a tunnel connection; the two slave gateway devices exchange data streams through the established tunnel connection.

[0087] Correspondingly, the present invention also proposes a system for communicating between gateway devices in a VPN that adopts more than four-layer tunnel technology. image 3 It is a schematic diagram of the structure of the system of the present invention. See image 3 , The system of ...

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Abstract

The invention is applicable to virtual privacy network of using tunneling technique in four or more layers. Main gateway device sets up any one from two pieces of slave gateway device as server end. Main gateway device sends IP address of slave gateway device set up as server end to slave gateway device set up as client end in two pieces of slave gateway device; based on received IP address and slave gateway device set up as server end, slave gateway device as client end establishes tunnel connection; through the established tunnel connection, two pieces of slave gateway device carry out communication. In the invention, main gateway device does not need to carry out a series of cockamamie forwarding process procedure for data stream between slave gateway devices so as to reduce traffic load capacity of main gateway device greatly.

Description

Technical field [0001] The present invention relates to a virtual private network (VPN) technology, in particular to a method and a system for implementing communication between slave gateway devices in a VPN using four-layer or more-layer tunnel technology. Background technique [0002] At present, VPNs using four-layer or higher-layer tunneling technology have been widely used. VPNs with four or more layers of tunnel technology are based on the secure hypertext transfer protocol (HTTPS) for VPN access, that is to say, the client can perform secure VPN access through the Internet browser without additional The client software installation process, therefore, the entire business realization process is convenient and quick. [0003] In VPNs that use layer four or more tunnel technology, a gateway device is set up in the branch network of each region, and specific tunnel connections are established between gateway devices in different branch networks and connected through the estab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/66
Inventor 卢胜文张浙亮
Owner NEW H3C TECH CO LTD
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