Unlock instant, AI-driven research and patent intelligence for your innovation.

Firewall flow table backup method, firewall and firewall system

A firewall and flow table technology, applied in the network field, can solve problems such as business interruption, and achieve the effect of preventing business interruption

Active Publication Date: 2018-05-22
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a firewall backup method, a firewall and a firewall system to solve the problem of service interruption caused by a firewall performing NAT services when switching traffic

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Firewall flow table backup method, firewall and firewall system
  • Firewall flow table backup method, firewall and firewall system
  • Firewall flow table backup method, firewall and firewall system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0060] figure 1 It is a schematic flowchart of the firewall backup method provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the firewall backup method provided in this embodiment includes:

[0061] S101. When the main firewall forwards the first packet of the packet flow, obtain the flow table and NAT connection info...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a firewall flow graph backup method, a firewall and a firewall system. According to the firewall flow graph backup method provided by the invention, the system internally comprises a master firewall and a slave firewall which work in an NAT (Network Address Translation) mode and are hot backups to each other. The method comprises the following steps that when the master firewall transmits a first massage of a message flow, a flow graph and NAT connection information of the massage flow are acquired; the master firewall sends the flow graph and the NAT connection information of the massage flow to the slave firewall so as to enable the slave firewall to transmit non-first massages of the massage flow according to the flow graph and the NAT connection information of the massage flow. According to the firewall flow graph backup method, the firewall and the firewall system, service interruption can be prevented when the firewall carries out flow switching.

Description

technical field [0001] The embodiments of the present invention relate to network technologies, and in particular to a firewall flow table backup method, a firewall and a firewall system. Background technique [0002] Firewalls are usually composed of software and hardware devices, deployed between the intranet and the extranet, between the private network and the public network, between the local area network and the Internet, and are used to protect the internal network, private network or local area network from illegal user intrusion or viruses, Trojan horses s attack. When traffic passes, the firewall will create forward and reverse traffic respectively according to the protocol number, source Internet Protocol (IP) address, destination IP address, source port address, and destination port address of the first packet in the session packet. Flow entry, subsequent packets will be forwarded according to the forward or reverse flow entry. [0003] At present, in a high-av...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L67/1036
Inventor 陈旭
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com