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Packet filtering method and apparatus

A packet filtering and packet technology, applied in the field of communications, to improve overall performance and prevent attacks

Active Publication Date: 2012-05-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, at present, the network side lacks measures that can not only guarantee the original functions of the system, but also effectively prevent the attacks of network hackers.

Method used

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  • Packet filtering method and apparatus
  • Packet filtering method and apparatus
  • Packet filtering method and apparatus

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Embodiment Construction

[0019] Functional Overview

[0020] Since the current network side lacks measures that can take into account system functions and effectively prevent network hacker attacks, the present invention provides a message filtering scheme that can effectively prevent network side hacker attacks. Since the attack of network hackers is generally manifested in the rate of messages transmitted during the communication process, the message filtering scheme judges the security of messages based on the rate of messages, so as to effectively prevent network hackers s attack. The specific operations include: setting the rate threshold in advance according to the protocol and source address of the message, and selecting an appropriate rate threshold for the received message according to its protocol and source address. If the rate of the received message is greater than the rate threshold selected for it, If the packet is unsafe, the packet will be discarded. If the rate of the received pack...

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Abstract

The present invention provides a message filtering method and a device thereof, wherein the message filtering method comprises the following steps: confirming the speed, protocol and source address of received message, and confirming a speed threshold corresponding with protocol and source address from at least one preset speed threshold; and filtering the message according to the confirmed speedthreshold and message threshold. The message filtering method and device of the invention can overcome the problem that the system performance is affected when the network side prevents the attack ofnetwork hacker. The attack of network hacker can be effectively prevented under the precondition that the system performance is not affected. The whole performance of system is increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a message filtering method and device. Background technique [0002] At present, the Internet provides more convenience for people's life and work. However, there are also some network hackers with ulterior motives on the Internet, who maliciously attack network devices (such as switches, routers, and Broadband Remote Access Servers (BRAS for short)) through the Internet in order to achieve a certain purpose. [0003] On the user side, technologies for preventing network hacker attacks include: MAC address binding technology (also called IP address binding technology), that is, if the MAC address (or IP address) of the received message is not within the bound MAC address ( or IP address), it means that the received message carries a malicious attack, that is, the message is not safe, and the user side directly discards the message. [0004] On the network side, there is curren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00H04L29/06H04L12/56H04L45/74
Inventor 张宪勤
Owner ZTE CORP