Command Reference Guide

3Com Router 5000 Family and Router 6000 Family gratuitous-arp-learning enable ● 175
Command Reference
gratuitous-arp-learning enable
Purpose Use the gratuitous-arp-learning enable command to enable the address
learning function of gratuitous ARP.
Use the undo gratuitous-arp-learning enable command to disable the
address learning function of gratuitous ARP.
Syntax gratuitous-arp-learning enable
undo gratuitous-arp-learning enable
Parameters None
Default By default, the address learning function of gratuitous ARP is disabled.
Example Enable the address learning function of gratuitous ARP.
<3ComA> system-view
System View: return to User View with Ctrl+Z.
[3ComA] gratuitous-arp-learning enable
View This command can be used in the following views:
■ System view
Description By sending gratuitous ARP messages, a network device can:
■ Check for IP address conflicts with other devices.
■ Update its current hardware address to the caches on other devices if a hardware
address change has occurred for example, after the device reconnected to the
network with a new interface card.
Related Command debugging arp packet