Show arp command, Cisco & Vyatta

From NetworkCommands

A command available on most Cisco and Vyatta platforms; used to display the device's current ARP table.

Usage Syntax

show arp

Usage Examples

show arp | i 1.1.1. - display only those ARP table entries with an address beginning 1.1.1.

show arp | e 0800 - - display only those ARP table entries with a hardware address that does not contain 0800

Usage Notes

Note that the Cisco show ip arp command performs the same function but has more options.

As demonstrated above, you can use standard Cisco output modifiers to restrict the information returned by this command.

Typical Output

Cisco Catalyst 4000: IOS Version 12.2(18)EW - January 2007

Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  179.32.128.10           -   0000.0d07.ac0a  ARPA   Vlan991
Internet  179.32.128.5          198   0011.2a03.a7bf  ARPA   Vlan991
Internet  12.222.240.40         199   0800.8f05.1bbb  ARPA   Vlan217
Internet  12.222.240.41         199   0800.8f03.7612  ARPA   Vlan217
Internet  179.32.128.1            -   0000.0d07.acac  ARPA   Vlan991
Internet  12.222.240.42          15   0800.8f05.1bbc  ARPA   Vlan217
Internet  12.222.240.43          99   0800.8f03.7613  ARPA   Vlan217

Related Articles

Use the Cisco arp command to configure static ARP entries

Command Equivalents

The Windows and Linux command equivalent is the arp command

The Extreme command equivalent is the show iparp command

The Blue Coat SGOS command equivalent is the show arp-table command

See the show arp command, Nokia article for details of the Nokia platform command of the same name.