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A message processing method and device

A packet processing and ARP packet technology, applied in the field of network communication, which can solve the problem that static terminals cannot access the network.

Active Publication Date: 2020-07-07
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a message processing method and device to solve the problem in the prior art that static terminals cannot access the network

Method used

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  • A message processing method and device
  • A message processing method and device
  • A message processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076]1, when DHCP server receives the ARP message that PC2 sends, according to the source IP address (being IP1) of described ARP message and source MAC address (MAC2) query the solidified ARP entry that self maintains; A fixed ARP entry whose IP address is IP1;

[0077] 2. The DHCP server queries the lease information stored locally according to the IP1 of the ARP message, and finds that there is lease information corresponding to IP1 locally, that is, IP1 has been given to other terminals by the DHCP server through DHCP. In order to avoid address conflicts, the DHCP server is incorrect. The ARP message is learned, and the ARP message is discarded;

[0078] 3. The DHCP server generates the fixed ARP entries shown in Table 3 according to the lease information corresponding to IP1:

[0079] table 3

[0080] IP MAC VLAN interface Aging type IP1 MAC1 VLAN1 Interface1 T1 fixing

[0081] 4. When the DHCP server receives the ARP message whos...

Embodiment 2

[0085] 1. When the DHCP server receives the ARP message sent by PC2, it queries the silent table entry maintained by itself according to the source IP address (ie IP1) and the source MAC address (MAC2) of the ARP message; it is found that there is no included IP The silent entry whose address is IP1 and whose MAC address is MAC2;

[0086] 2. The DHCP server queries the lease information stored locally according to the IP1 of the ARP message, and finds that there is lease information corresponding to IP1 locally, that is, IP1 has been given to other terminals by the DHCP server through DHCP. In order to avoid address conflicts, the DHCP server is incorrect. The ARP message is learned, and the ARP message is discarded;

[0087] 3. The DHCP server generates the silent entry shown in Table 4 according to the ARP message:

[0088] Table 4

[0089] IP MAC Aging IP1 MAC2 T1

[0090] 4. When the DHCP server receives the ARP message whose source IP address ...

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Abstract

The present application provides a message processing method and device, the method comprising: when receiving an Address Resolution Protocol ARP message, judging whether there is lease information corresponding to the source Internet Protocol IP address of the ARP message; if there is Lease information corresponding to the source IP address, then refuse to perform ARP learning according to the ARP message; if there is no lease information corresponding to the source IP address, perform ARP learning according to the ARP message. Applying the embodiments of the present application can avoid address conflicts between static terminals and dynamic terminals, and ensure that static terminals can normally access the network when there is no address conflict.

Description

technical field [0001] The present application relates to the technical field of network communication, and in particular to a message processing method and device. Background technique [0002] DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) is usually applied in a large-scale local area network environment. ) address, Gateway (gateway) address and other information, and can improve the utilization rate of the address. [0003] The DHCP protocol adopts the client / server model, and the dynamic allocation task of the host address is driven by the network host. When the DHCP server receives the information from the network host to apply for an address, it will send relevant address configuration and other information to the network host to realize the dynamic configuration of the network host address information. Contents of the invention [0004] The present application provides a message processing method and device to solve the problem in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L12/741H04L45/74
CPCH04L45/74H04L61/103H04L61/5046H04L61/5014H04L2101/622
Inventor 王阳廖以顺
Owner NEW H3C TECH CO LTD
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