ARP entry updating management method, apparatus and system

A management method and ARP message technology, applied in the field of address resolution protocol spoofing prevention, device and system, and ARP entry update management method, can solve problems such as increasing equipment costs, and achieve the effects of improving reliability and preventing ARP spoofing

Inactive Publication Date: 2018-04-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the embodiment of the present invention provides an ARP entry update management method, device and system to solve the problem in the prior art that a third-party trusted host needs to be added for information verification when updating ARP entries, thereby increasing equipment costs

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  • ARP entry updating management method, apparatus and system
  • ARP entry updating management method, apparatus and system
  • ARP entry updating management method, apparatus and system

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Embodiment 1

[0089] The present invention describes Embodiment 1 by taking a general router and host networking environment as an example.

[0090] Figure 6 It is a structural diagram of a router and host networking environment provided by Embodiment 1 of the present invention. Such as Figure 6 As shown, the networking environment includes router R and hosts H1, H2, and H3. Among them, IP of router R: 192.168.1.1, MAC: 00:18:36:49:95:88; IP of host H1: 192.168.1.2, MAC: 00:18:36:49:95:A2; host H2 IP: 192.168.1.3, MAC: 00:18:36:49:95:B3; IP of host H3: 192.168.1.4, MAC: 00:18:36:49:95:C4, the router learns the ARP entry of the host , the host learns the ARP entries of the router and the ARP entries of other hosts respectively.

[0091] Before adopting embodiment one of the present invention:

[0092] The ARP entries learned by router R are as follows:

[0093] 192.168.1.2 00:18:36:49:95:A2

[0094] 192.168.1.3 00:18:36:49:95:B3

[0095] 192.168.1.4 00:18:36:49:95:C4

[0096] The AR...

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Abstract

The invention provides an ARP entry updating management method, apparatus and system. The method includes the following steps: a second device receives an address resolution protocol ARP message sentby a first device, wherein the ARP message carries a first signature generated according to preset identification information; the second device verifies the identity of the first device according tothe first signature; and if the first device passes identity verification, the second device updates a stored ARP entry of the first device. Through the method, the problem in the prior art that information verification by a third party trusted host is needed in ARP entry updating and thus the device cost is increased is solved, the reliability of ARP entry updating between devices is improved, and ARP cheating is prevented.

Description

technical field [0001] The present invention relates to the technical field of communication, the technology of preventing Address Resolution Protocol (ARP, Address Resolution Protocol) from cheating, and mainly relates to an ARP entry update management method, device and system. Background technique [0002] ARP spoofing is one of the attack methods commonly used by hackers. Hackers can eavesdrop on all (IP, MAC) addresses in the network as long as they read the ARP request sent to the door in the LAN. Later, when the node receives the ARP response, it will not question the reliability of the ARP response, but directly updates the ARP entry of the device according to the (IP, MAC) address information in the ARP response. Generally speaking, the consequences of ARP spoofing attacks are very serious, and in most cases it will cause a large area of ​​equipment to go offline. [0003] In the prior art, a key verification method is mainly used when updating an ARP entry, that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/12
CPCH04L61/103H04L63/08H04L63/0876H04L63/1483H04L61/5053
Inventor 邵长春
Owner ZTE CORP
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