Data transmission method, egress router, firewall and double firewall system

A data transmission method and data transmission technology, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the problems of limited data transmission speed, waste of system resources, etc., to improve data transmission speed, avoid cost increase, The effect of high reliability and stability

Active Publication Date: 2021-06-29
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, there are two firewalls at the local end, and usually only the main firewall perfo

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  • Data transmission method, egress router, firewall and double firewall system
  • Data transmission method, egress router, firewall and double firewall system
  • Data transmission method, egress router, firewall and double firewall system

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[0037] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0038] figure 1 Network architecture diagram of a double firewall system provided by the embodiment of the present invention; figure 2 A flow chart of a data transmission method provided by the embodiment of the present invention. The embodiment of the present invention provides a data transmission method, is applied to figure 1 In the double firewall system, the double firewall system includes: two firewalls 111 and 112, outlet router 120, and internal network router 130, and the two firewalls 111 and 112 are configured t...

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Abstract

The invention provides a data transmission method, an egress router, a firewall, and a dual firewall system. The link states of the IPSEC virtual tunnels corresponding to the two firewalls are obtained through the egress routers in the dual firewall system; if the links of the two IPSEC virtual tunnels are If the road status is normal, the egress router adopts load sharing mode to transmit data with the peer device through two IPSEC virtual tunnels. The method of the present invention enables the two firewalls to load process IPSEC VPN service traffic through the active-active mode load sharing of the dual firewall systems, improves the data transmission speed, avoids waste of resources, and has high reliability and stability at the same time. And the peer device does not need to set up two firewalls, which avoids the increase of cost and the waste of address resources.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data transmission method, an egress router, a firewall and a dual firewall system. Background technique [0002] Firewall, also known as protective wall, was invented by Check Point founder Gil Shwed in 1993 and introduced into the Internet (US5606668(A) 1993-12-15). It is a network security system located between the internal network and the external network. An information security protection system that allows or restricts the transmission of data according to specific rules. The government, transportation, public security, telecommunications, finance, energy and other departments all carry intranet information systems. With the development of Internet services, these enterprise-level intranet systems and networks usually need to establish session connections with the public network. In order to prevent network intrusion and network attacks on the intranet, firewalls...

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Application Information

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IPC IPC(8): H04L29/06H04L12/803
Inventor 王东张晖陈静林晨王延军伍军
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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