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Method and device for spreading network route to remote network using IPScc

A remote network and routing technology, applied in the field of network information security, can solve the problems that the local area network cannot continue, and the dynamic routing management protocol cannot be run in the large local area network.

Active Publication Date: 2007-10-10
QI-ANXIN LEGENDSEC INFORMATION TECH (BEIJING) INC
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. After the route of the LAN reaches the border security gateway, it cannot continue. The border security gateway can only process network data packets according to the security policy
[0004] 2. The dynamic routing protocol can only run in a single LAN. Although the interconnection and intercommunication of various networks has been realized, it is impossible to run a unified dynamic routing management protocol in the large LAN formed after the connection.

Method used

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  • Method and device for spreading network route to remote network using IPScc
  • Method and device for spreading network route to remote network using IPScc
  • Method and device for spreading network route to remote network using IPScc

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Embodiment Construction

[0031] The technical scheme of the present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0032] Referring to shown in accompanying drawing 3, set up a virtual private network from Beijing to Shanghai, this network is composed of Beijing local area network 1, Beijing security gateway equipment 2, Shanghai security gateway equipment 3, Shanghai local area network 4, Beijing exchange 5 and Shanghai exchange 6 are formed and connected. The Beijing security gateway device 2 is used as the sending end, and the Shanghai security gateway device 3 is used as the receiving end. The IP address of Beijing LAN 1 is 192.168.1.0 / 24, the IP address of Beijing security gateway device 2 is 211.218.85.1, the IP address of Shanghai security gateway device 3 is 219.202.2.1, and the IP address of Shanghai LAN 4 is 192.168. 2.0 / 24.

[0033] Both the Beijing security gateway equipment and the Shanghai security gateway equipment consis...

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Abstract

The method comprises: by expanding the route table of the security gateway, adding a tunnel virtual network interface supporting tunnel ID option and tunnel state option into network system; according to the tunnel virtual network interface selected by route, getting the tunnel ID, and according to the tunnel ID, getting the security association; making encryption and package process. By the invention, each branch LAN can be interconnected through route.

Description

technical field [0001] The invention relates to a method and a device for extending network routing to a remote network by using IPSec, belonging to the technical field of network information security. Background technique [0002] A router is a computer system with multiple network interfaces. It receives data packets from the network, searches the routing table according to the source and destination of the data packets, and forwards the successfully searched data packets. Now enterprises and governments have large and small branches in different regions, and these branches have their own local area networks. But these networks are decentralized and need to be interconnected. Because the addresses of these LANs are all private addresses and cannot be routed through the Internet, interconnection cannot be achieved by relying on routers. (See Figure 1) The IPSec protocol has designed a framework and standards for the security of IP. IPSec virtual private network (VPN) is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/56H04L12/66H04L45/74
Inventor 刘建锋王刚谌颐任献永肖为剑宋斌
Owner QI-ANXIN LEGENDSEC INFORMATION TECH (BEIJING) INC
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