Specifications

Reviewing and Configuring the ARP Table show ip arp
16-12 IP Configuration
Reviewing and Configuring the ARP Table
Purpose
ToreviewandconfiguretheroutingARPtable,toenableproxyARPonaninterface,andtoseta
MACaddressonaninterface.
Commands
show ip arp
UsethiscommandtodisplayentriesintheARP(AddressResolutionProtocol)table.ARP
convertsanIPaddressintoaphysicaladdress.
Syntax
show ip arp [ip-address] [vlan vlan-id] [output-modifier]
Parameters
Defaults
Ifnoparametersarespecified,allentriesintheARPcachewillbedisplayed.
For information about... Refer to page...
show ip arp 16-12
arp 16-13
ip gratuitous-arp 16-14
ip gratuitous-arp-learning 16-15
ip proxy-arp 16-16
ip mac-address 16-16
arp timeout 16-17
clear arp-cache 16-18
ip‐address (Optional)DisplaysARPentriesrelatedtoaspecificIPaddress.
vlanvlan‐id (Optional)DisplaysonlyARPentrieslearnedthroughaspecificVLAN
interface.ThisVLANmustbeconfiguredforIProutingasdescribedin
“Pre‐RoutingConfigurationTasks”onpage 2‐88.
output‐modifier (Optional)DisplaysARPentrieswithina
specificrange.Thesyntaxisto
enteran“|”character,followedbyaspace,followedbyabegin,
exclude,orincludekeywordasfollows:
• | begin ip-address — Displays only ARP entries that begin with
the specified IP address.
• | exclude ip-address — Excludes ARP entries matching the
specified IP address.
• | include ip-address — Includes ARP entries matching the
specified IP address.