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Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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ARP Security Maintenance

ARP Security Maintenance

The section describes the ARP security maintenance, including monitoring ARP running status, clearing statistics on ARP packets, clearing statistics on discarded ARP packets, and configuring the alarm and log functions for potential ARP attacks.

Monitoring ARP Running Status

Procedure

  • Run:

    display arp packet statistics

    Statistics on ARP-based packets is displayed.

Clearing ARP Security Statistics

Context

ARP security statistics cannot be restored after being cleared. Confirm the action before you use the command.

To clear ARP security statistics, run the following commands in the user view:

Procedure

  • Run:

    reset arp packet statistics

    Statistics on ARP packets is cleared.

  • Run:

    reset arp anti-attack statistics rate-limit { global | interface interface-type interface-number }

    Statistics about ARP packets discarded when the number of ARP packets exceeds the limit is cleared.

Configuring the Alarm Function for Potential ARP Attacks

Context

To allow the administrator to learn the ARP running status in real time, define potential attacks, and take measures, the device provides the alarm function for potential ARP attacks. This function records exceptions of ARP running in real time. To avoid excessive alarms when ARP attacks occur, reduce the alarm quantity by setting a proper interval for sending alarms.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    arp anti-attack log-trap-timer time

    The interval for sending ARP alarms is set.

    The default interval for sending alarms is 0, indicating that the device does not send ARP alarms.

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Updated: 2019-01-11

Document ID: EDOC1000176006

Views: 117675

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