gratuitous-arp-learning enable

Syntax

gratuitous-arp-learning enable

undo gratuitous-arp-learning enable

View

System view

Default level

2: System level

Parameters

None

Description

Use gratuitous-arp-learning enable to enable the gratuitous ARP packet learning function.

Use undo gratuitous-arp-learning enable to disable the function.

By default, the function is enabled.

With this function enabled, a device receiving a gratuitous ARP packet can add the source IP and MAC addresses to its own dynamic ARP table if it finds that no ARP entry exists in the cache corresponding to the source IP address of the ARP packet. If a matching ARP entry is found in the cache, the device updates the ARP entry regardless of whether this function is enabled.

Examples

# Enable the gratuitous ARP packet learning function.

<Sysname> system-view
[Sysname] gratuitous-arp-learning enable