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