Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide Chapter 2 ARP Configuration Commands
3Com Corporation
2-7
Use the undo arp-proxy enable command to disable proxy arp on the interface.
By default, the proxy ARP is disabled.
This command is applied on Ethernet interface. As for the hosts in the same hop but on
different physical networks, the proxy ARP function hides the fact that the physical
network are separated, and makes the user feel like he is on the same and one physical
network.
Example
# Enable proxy ARP at Ethernet 0/0/0.
[Router-Ethernet0/0/0] arp-proxy enable
2.3 Gratuitous ARP Configuration Commands
2.3.1 gratuitous-arp-learning enable
Syntax
gratuitous-arp-learning enable
undo gratuitous-arp-learning enable
View
System view
Parameter
None
Description
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.
By default, the address learning function of gratuitous ARP is disabled.
By sending gratuitous ARP messages, a network device can:
z Check for IP address conflicts with other devices.
z 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.
Example
# Enable the address learning function of gratuitous ARP.