ip arp gratuitous

To enable gratuitous Address Resolution Protocol (ARP), use the ip arp gratuitous command. To disable gratuitous ARP, use the no form of this command.

ip arp gratuitous { request | update }

no ip arp gratuitous { request | update }

Syntax Description

request
Enables sending gratuitous ARP requests when a duplicate address is detected.
update
Enables ARP cache updates for gratuitous ARP.

Command Default

Enabled

Command Modes

Interface configuration mode

Command History

Release
Modification
5.0(3)N1(1)
This command was introduced.

Examples

This example shows how to disable gratuitous ARP request on interface Ethernet 2/1:

switch(config)# interface ethernet 1/2
switch(config-if)# no switchport
switch(config-if)# ip arp gratuitous
switch(config-if)#
 

Related Commands

Command
Description
ip arp
Configures a static ARP entry.
show ip arp
Displays ARP configuration information.