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Fit AP V200R010C00 Command Reference

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
arp ip-conflict-detect enable

arp ip-conflict-detect enable

Function

The arp ip-conflict-detect enable command enables the function to detect IP address conflicts.

The undo arp ip-conflict-detect enable command disables the function to detect IP address conflicts.

By default, the function to detect IP address conflicts is disabled.

Format

arp ip-conflict-detect enable

undo arp ip-conflict-detect enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

When an IP address conflict occurs between network devices, it causes high CPU usage and route flapping. User services will be affected and even interrupted. To help users better manage the address of a network device and to prevent IP address conflicts from affecting user services, run the arp ip-conflict-detect enable command to enable the function to detect IP address conflicts.

When receiving a non-gratuitous ARP packet, the device compares the source IP address and the source MAC address of this ARP packet with that of the ARP entry learned on the device. If the source IP address and the IP address in the ARP entry are the same but the source MAC address and the MAC address in the ARP entry are different, the client considers that an IP address conflict occurs in the network.

Example

# Enable the function to detect IP address conflicts.

<Huawei> system-view
[Huawei] arp ip-conflict-detect enable
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Updated: 2019-07-18

Document ID: EDOC1100064353

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