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A message processing method and device

A message processing and message technology, applied in the field of communication, can solve problems such as great security risks of firewall equipment

Active Publication Date: 2020-10-13
NEW H3C SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on this, attackers can use the existing entry data in the fast forwarding table to launch attacks on the firewall device, resulting in a great security risk in the firewall device

Method used

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  • A message processing method and device
  • A message processing method and device
  • A message processing method and device

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Embodiment Construction

[0084] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0085] Before introducing the embodiments of the present application, the applicant first explains some terms in the embodiments of the present application.

[0086] Basic detection: It is used to detect the packet to determine whether the packet is legal. Basic detection may include one or more detection types, and each detection type has a corresponding detection strategy.

[0087] When the information in the packet matches the detection policy set by a certain detection type, it...

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Abstract

The embodiment of the present application provides a message processing method and device, which are applied to network equipment. The method includes: receiving the first message; after the first message successfully passes the basic detection, determining the second message received within the preset time The number of messages, the message information of the second message is the same as the first message information of the first message; determine whether the number is greater than the preset number threshold; if so, clear the first entry in the fast forwarding table; A table item includes second packet information of the first packet; attack detection is performed on the first packet. By applying the embodiment of the present application, the security risk existing in the network equipment is effectively reduced.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a message processing method and device. Background technique [0002] Currently, when the firewall device forwards packets, in order to speed up the packet forwarding efficiency, the firewall device will enable the fast forwarding function. After the fast forwarding function is enabled, a fast forwarding table is generated in the firewall device. The firewall device receives the message, and performs basic tests such as format detection, length detection, and key byte detection on the message. [0003] If the packet successfully passes the basic inspection, but there is no entry including packet information (such as quintuple information) in the fast forwarding table, the firewall device determines that the packet is the first packet of a service, and sends The message is sent to the CPU (Central Processing Unit, central processing unit) for attack detectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/0263H04L63/0254H04L63/1416H04L63/1425H04L63/0236H04L63/20
Inventor 张晓红
Owner NEW H3C SECURITY TECH CO LTD