Reviewing and Configuring the ARP Table
25-12 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.
Mode
Any router mode.
For information about... Refer to page...
show ip arp 25-12
arp 25-13
ip proxy-arp 25-14
arp timeout 25-15
clear arp-cache 25-15
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 24-1.
output-modifier (Optional) Displays ARP entries within a specific range. Options are:
–| 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.
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