Address resolution protocol message processing method and device

A technology of address resolution protocol and processing method, which is applied in the direction of digital transmission system, data exchange network, electrical components, etc., can solve the problem of low efficiency of ARP flood attack, improve processing efficiency and protection effect, save overall cost, and accurately Effect of identifying ARP packets
CN107690004BActive Publication Date: 2021-10-08ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2021-10-08

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Abstract

The present invention provides a method and device for processing an address resolution protocol message, wherein the method includes: receiving an address resolution protocol ARP message; obtaining priority information of the ARP message according to a preset white list; The ARP message is sent to the central processing unit CPU for ARP learning, wherein the sending bandwidth of the ARP message corresponding to different priority information is different. The present invention solves the problem of low efficiency in preventing ARP flood attacks in the related art.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a method and device for processing an address resolution protocol message. Background technique

[0002] The address resolution protocol (Address Resolution Protocol, ARP for short) in the related art is a TCP / IP protocol for obtaining a physical address according to an IP address. When the host sends information, it broadcasts the ARP request containing the target IP address to all hosts on the network, and receives the return message to determine the physical address of the target; after receiving the return message, store the IP address and physical address in the local ARP In the cache and keep it for a certain period of time, the next request will directly query the ARP cache to save resources. The address resolution protocol is based on the mutual trust of each host in the network. The hosts on the network can send ARP reply messages independently. When other hosts receiv...

Claims

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