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ARP message processing method and device

An ARP packet and processing method technology, applied in electrical components, transmission systems, etc., can solve problems such as no security mechanism, and achieve the effect of avoiding malicious attacks

Active Publication Date: 2016-11-23
NEUSOFT CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] It can be seen from the above-mentioned generation mechanism of ARP entries that the ARP protocol is based on mutual trust between various network devices in the network, and there is no security mechanism

Method used

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  • ARP message processing method and device

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Embodiment Construction

[0079] 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.

[0080] The following is an introduction to the specific content of the embodiments.

[0081] The embodiment of the present invention provides a method for processing ARP packets, refer to figure 1 , which is a flow chart of a method for processing an ARP message provided in an embodiment of the present invention, the method specifically includes:

[0082] S101: After receiving any ARP message, verify the authenticity of the ARP message.

[0083] S102: After the ARP message passes ...

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Abstract

The invention discloses an ARP message processing method and device. The method comprises the steps that after network equipment receives any ARP message, the ARP message is subjected to authenticity verification at first; after the ARP message passes the authenticity verification, the ARP message is used for creating or updating ARP items. By means of the ARP message processing method, hostile attacks that ARP messages are forged in a network can be effectively avoided.

Description

technical field [0001] The invention relates to the field of data processing, in particular to an ARP message processing method and device. Background technique [0002] ARP (English: Address Resolution Protocol; Chinese: Address Resolution Protocol) is the basic protocol of the data link layer such as Ethernet, which is used to complete the mapping from IP address to MAC address. In the actual application process, when any network device (such as a host or a gateway) needs to resolve the MAC address corresponding to a certain IP address, it will send a broadcast ARP request message. Once the returned ARP reply message is received, the network device will record the mapping relationship between the source IP address and the source MAC address that sent the ARP reply message, and generate an ARP entry. [0003] It can be seen from the above-mentioned generation mechanism of ARP entries that the ARP protocol is based on mutual trust between various network devices in the netw...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/12
CPCH04L61/103H04L63/1441
Inventor 李冰初雪宁
Owner NEUSOFT CORP