arp active-ack enable

Use arp active-ack enable to enable the ARP active acknowledgement feature.

Use undo arp active-ack enable to disable the ARP active acknowledgement feature.

Syntax

arp active-ack [ strict ] enable

undo arp active-ack [ strict ] enable

Default

The ARP active acknowledgement feature is disabled.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

strict: Enables strict mode for ARP active acknowledgement.

Usage guidelines

Configure this feature on gateways to prevent user spoofing.

In strict mode, a gateway learns an entry only when ARP active acknowledgement is successful based on the correct ARP resolution.

Examples

# Enable the ARP active acknowledgement feature.

<Sysname> system-view
[Sysname] arp active-ack enable