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ARP message processing method and network side apparatus

An ARP packet and processing method technology, applied to the network side equipment and ARP packet processing field, can solve the problems of ARP spoofing, single function, increase the complexity of terminal deployment and configuration, etc., and achieve the effect of reducing dependence and improving security.

Inactive Publication Date: 2009-09-23
SHENZHEN VINCIN UNITED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the ARP application scenario, it is easy to use ARP flaws to make network device C achieve the purpose of impersonating network device B to communicate with network device A, that is, ARP spoofing
The existing technology proposes an operation deployment on terminal equipment to prevent ARP spoofing. This method not only increases the complexity of terminal deployment configuration, but also does not interact with other network elements, resulting in the problem of single function. limitation

Method used

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  • ARP message processing method and network side apparatus
  • ARP message processing method and network side apparatus
  • ARP message processing method and network side apparatus

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Embodiment approach

[0061] As an implementation manner, the above-mentioned current IP is the current source IP, and the current MAC is the current source MAC, or, the current IP is the current target IP, and the current MAC is the current target MAC.

[0062] As an implementation manner, the foregoing network side device is a switch or a router.

[0063] In addition, those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The program During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM) and the like.

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Abstract

The embodiment of the invention relates to an ARP message processing method. The state of an MAC corresponding to a current IP in an ARP message is matched, and a corresponding ARP message and a relationship table of the IP and the MAC are processed according to different MAC states. In addition, the embodiment of the invention also provides a network side apparatus. The embodiment of the invention can prevent ARP cheating at a network side, greatly reduce the dependence on a terminal apparatus and simultaneously greatly improve the security of preventing ARP attack.

Description

technical field [0001] The invention relates to the communication field, in particular to an ARP message processing method and network side equipment. Background technique [0002] The address translation protocol (An Ethernet Address Resolution Protocol, ARP) on Ethernet, by following this protocol, as long as we know the Internet Protocol (Internet Protocol, IP) address of a certain machine, we can know its physical address, that is, media access control Sublayer protocol (Media Access Control, MAC) address. In the Transmission Control Protocol / Internet Protocol (TCP / IP) network environment, each host is assigned a 32-bit IP address, which is a logical way to identify hosts in the Internet range. address. In order for the message to be transmitted on the physical network, the physical address of the other destination host must be known. Thus there is an address translation problem of converting an IP address into a physical address. Taking the Ethernet environment as a...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L29/12
Inventor 蓝晓敏
Owner SHENZHEN VINCIN UNITED TECH