Quick Reference Guide

392 | Routing Commands
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arp
This command creates an ARP entry.
Syntax
[oe] sd ipaddress macaddr
The value for ipaddress is the IP address of a device on a subnet attached to an existing routing
interface. macaddr is a unicast MAC address for that device. The format is 6 two-digit hexadecimal
numbers that are separated by colons, for example 00:06:29:32:81:40.
The no version of this command deletes an ARP entry.
Mode
Global Config
arp cachesize
This command configures the ARP cache size. The value for cachesize is a platform specific integer
value.
Syntax
[no] arp cachesize Platform_specific_integer_value
Mode
Global Config
arp dynamicrenew
This command enables the ARP component to automatically renew ARP entries of type dynamic when
they age out.
The no version of this command disables ARP component from automatically renewing ARP entries
of type dynamic when they age out.
Syntax
[no] arp dynamicrenew
Mode
Global Config
Command
History
arp purge
This command causes the specified IP address to be removed from the ARP cache. Only entries of type
dynamic or gateway are affected by this command.
Syntax
arp purge ipaddr
Mode
Privileged Exec
Version 2.3 Modified: Moved from Privileged Exec mode to Global Config mode.