Arp Table Commands; Enabling Proxy Arp - Avaya G250 Administration

ARP table commands

Use the following commands to configure the ARP table. For more information about these
commands, see Avaya G250 and Avaya G350 CLI Reference, 03-300437.
Use the arp command to add a permanent entry to the Address Resolution Protocol
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(ARP) table. Use the no form of this command to remove either a static entry or a
dynamically learned entry from the ARP table.
Use the arp timeout command to configure the amount of time, in seconds, that an
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entry remains in the ARP table. Entering the arp timeout command without a time
parameter will display the current timeout value. Use the no form of this command to
restore the default value (four hours).
Use the clear arp-cache command to delete all dynamic entries from the ARP table
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and the IP route cache.
Use the ip max-arp-entries command to specify the maximum number of ARP table
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entries allowed in the ARP table. Use the no form of this command to restore the default
value.
Use the show ip arp command to display a list of the ARP resolved MAC to IP
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addresses in the ARP table.
Use the show ip reverse-arp command to display the IP address of a host, based on
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a known MAC address.

Enabling proxy ARP

The G250/G350 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 G250/G350 interface, use the ip proxy-arp command. Use the
no form of this command to disable proxy ARP on an interface.
Enabling proxy ARP
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