Enabling Proxy Arp; Summary Of Proxy Arp Commands - Avaya G450 Manual

Table 120: ARP table CLI commands (continued)
Command
show ip arp
show ip
reverse-arp

Enabling proxy ARP

The G450 supports proxy ARP. Proxy ARP is a technique by which a router provides a false
identity when answering ARP requests intended for another device. By falsifying its identify, the
router accepts responsibility for routing packets to their true destination.
Proxy ARP can help devices on a subnet to reach remote subnets without the need to configure
routing or a default gateway.
To enable proxy ARP on a G450 interface, enter ip proxy-arp. Use the no form of this
command to disable proxy ARP on an interface.

Summary of Proxy ARP commands

For more information about these commands, see Avaya G450 CLI Reference, 03-300437.
Table 121: Proxy ARP CLI commands
Root level
command
interface
(fastethernet|
vlan)
Description
Display a list of the ARP resolved MAC to IP addresses in the ARP
table
Display the IP address of a host, based on a known MAC address
Command
ip proxy-arp
Description
Enter the FastEthernet or VLAN interface
context
Enable proxy ARP on a G450 interface
Enabling proxy ARP
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Issue 1 January 2008 485