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Packet processing method, fire wall equipment and network security system

A message processing and firewall technology, applied in the field of communication, can solve problems such as message forwarding confusion

Active Publication Date: 2009-01-14
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a firewall transparent mode message processing method, firewall equipment and network security system, which can solve the problem of message forwarding confusion when addresses overlap

Method used

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  • Packet processing method, fire wall equipment and network security system
  • Packet processing method, fire wall equipment and network security system
  • Packet processing method, fire wall equipment and network security system

Examples

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Embodiment Construction

[0022] Embodiments of the present invention provide a message processing method in a firewall transparent mode, a firewall device and a network security system, which can solve the problem of message forwarding confusion when addresses overlap. The firewall in the embodiment of the present invention can be either a centralized firewall or a distributed firewall. In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0023] like figure 2 As shown, the flow chart of the message processing method in the firewall transparent mode provided by the embodiment of the present invention includes the following process:

[0024] Step 201, when the service forwarding unit (SFU, Service Forward Unit) forwards the message, different VPN values ​​are configured to different VLAN interfaces, so that the flow under the VLAN inter...

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Abstract

The invention discloses a message processing method, comprising: configurating different virtual special network VPN values for different virtual local area network VLAN when transmitting messages, and encapsulating parameters including VPN into data frame heads corresponding to the messages; resolving the messages, when the resolution is in a transparent mode, setting a global identification for identifying that the messages enter a firewall through a bilaminar transmitting interface; building corresponding status list items for the messages and transmitting the messages after the messages pass through relative process of the firewall, wherein the status list items include parameter information including VPN value. The invention also discloses a firewall device and a network security system, thereby solving the problems that message transmission is disordered when the address is superposed.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a message processing method, a firewall device and a network security system. Background technique [0002] At present, with the increasing development of the network, the security problem of the network becomes more and more prominent. People mainly focus on attacks from outside, so they spend a lot of effort and money to deploy security products at the network border, such as firewalls, intrusion detection systems (IDS, Intrusion Detection Systems) and so on. [0003] Hardware firewall means that the firewall program is built into the chip, and these functions are performed by the hardware, which can reduce the burden on the CPU and make the routing more stable. The hardware firewall is an important barrier to ensure the security of the internal network. In addition, by creating a logical virtual firewall (Vfw, Virtual firewall), the hardware firewall can provide a fire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/06
Inventor 代可可
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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