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Method, equipment and communication network for preventing from address resolution protocol attack

An address resolution protocol and address technology, which is applied in the address resolution protocol attack prevention method, equipment and communication network fields, can solve problems such as error-prone, difficult to maintain, increase maintenance cost and workload, etc., to improve network security and defense ARP attack, the effect of reducing the difficulty of network maintenance

Inactive Publication Date: 2009-07-22
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the technical solution of ARP two-way static binding provided by the prior art, the workload of configuration and maintenance is too large, error-prone, and not easy to maintain. Both new user joining and old user exit require manual operations on the gateway device. Virtually increased maintenance costs and workload

Method used

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  • Method, equipment and communication network for preventing from address resolution protocol attack
  • Method, equipment and communication network for preventing from address resolution protocol attack
  • Method, equipment and communication network for preventing from address resolution protocol attack

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] like figure 1 As shown, it is a schematic flow chart of an ARP attack prevention method proposed in Embodiment 1 of the present invention, and the method includes the following steps:

[0042] Step S101 , the access gateway receives the ARP packet, and according to the first information of the ARP packet, detects whether there is an ARP entry containing the same first information in at least one pre-stored ARP entry.

[0043] Further, bef...

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PUM

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Abstract

The embodiment of this invention discloses an ARP attach precautionary method, device and communication. The method comprises following steps: receiving an ARP message, detecting whether there is an ARP list item including the same first information in pre-stored at least one ARP list item according to a first information of the ARP message; if there is the ARP list item, judging whether a second information in the ARP list item is the same with the second information in the ARP message; when the second information in the ARP list item is different from the second information of the ARP message, then abandoning the ARP message and recording the attack diary. Applying the technical solution of this invention realizes performing multiplex filtering to the ARP message based on the authorization information at least including the first and second information, thereby protecting against the ARP attach without the manual maintenance, realizing effects of reducing the network maintenance difficulty and improving the network safety.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an address resolution protocol attack prevention method, equipment and communication network. Background technique [0002] ARP (Address Resolution Protocol, Address Resolution Protocol) is too simple and open without any security means, leaving a wide space for illegal attacks. ARP attacks can cause a large area of ​​LAN users to be offline and unable to access the Internet, and can also eavesdrop on user data and steal some important data such as user names and passwords of online banking. Therefore, to prevent ARP attacks, ensure that users can access the Internet normally, and that private data is not stolen by illegal elements, it has become the top priority of the current LAN attack prevention. [0003] At present, the attack mode of ARP includes the attack mode aimed at the user gateway and the attack mode aimed at the user host, and the attack mode aimed at the us...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/66H04L12/56
Inventor 王胜章海刚
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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