Instruction Manual

IP Addressing Commands
Page 140
show arp
The show arp Privileged EXEC mode command displays entries in the ARP table.
Syntax
show arp [ip-address ip-address] [mac-address mac-address] [ethernet interface | port-channel port-channel-
number]
Parameters
•
ip-address — Displays the ARP entry of a specific IP address.
• mac-address — Displays the ARP entry of a specific MAC address.
• interface — Displays the ARP entry of a specific Ethernet port interface.
• port-channel-number — Displays the ARP entry of a specific Port-channel number interface.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode
User Guidelines
Since the associated interface of a MAC address can be aged out from the FDB table, the Interface field can be
empty.
When an ARP entry is associated with an IP interface that is defined on a port or port-channel, the VLAN field is
empty.
Example
The following example displays entries in the ARP table.
ip domain-lookup
The ip domain-lookup Global Configuration mode command enables the IP Domain Naming System (DNS)-
based host name-to-address translation. Use the no form of this command to disable DNS-based host name-to-
address translation.
Syntax
ip domain-lookup
console# show arp
ARP timeout: 80000 Seconds
VLAN Interface IP Address HW Address Status
------------- ------------- ------------- ------------- -------------
VLAN 1 1/e1 10.7.1.102 00:10:B5:04:DB:4B Dynamic
VLAN 1 2/e2 10.7.1.135 00:50:22:00:2A:A4 Static