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Configuration Guide - WLAN-AC

S5700 and S6720 V200R012C00

This document describes the configurations of WLAN, including WLAN Service Configuration, Radio Resource Management, Roaming, WLAN QoS, WLAN Security, WDS, Mesh, Location, Hotspot 2.0, Dual-Link Cold Backup, N+1 Backup.
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Configuring DAI

Configuring DAI

Context

After dynamic ARP inspection (DAI) is enabled, an AP detects the ARP request and reply packets transmitted on the VAPs, discards invalid and attack ARP packets, and sends an alarm to the connected AC. DAI prevents unauthorized users from connecting to external networks through the AP and protects authorized users from interference and ARP spoofing attacks. In addition, DAI protects the AP's CPU from ARP attacks, which, if not prevented, will cause unavailability of some functions on the AP or even make the AP break down.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run wlan

    The WLAN view is displayed.

  3. Run vap-profile name profile-name

    The VAP profile view is displayed.

  4. Run arp anti-attack check user-bind enable

    DAI is enabled.

    By default, DAI is disabled.

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Updated: 2018-12-24

Document ID: EDOC1100038361

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