DGS-6604 m show arp
CLI Reference Guide
578
show arp
Use the show arp command to display the Address Resolution Protocol (ARP)
cache.
show arp [ARP-MODE] [IP-ADDRESS [/ MASK]] [INTERFACE-ID]
Default None
Command Mode User EXEC mode or any configuration mode
Usage Guideline ARP establishes correspondences between network addresses (an IP address,
for example) and LAN hardware addresses (Ethernet addresses). A dynamic
record of each correspondence is kept in a cache for a predetermined amount of
time and then discarded. The predetermined amount of time can be changed
using the arp timeout command. If no arp mode argument is specified, then all
of the arp entries are displayed.
The user can select to display a specific ARP entry, all ARP entries, dynamic
entries, static entries, or entries associated with an IP interface.
Example This example shows how to display the ARP cache. The field of IP Interface is
indicated with the Interface ID.
Syntax Description
ARP-MODE (Optional) Displays the entries that are in a specific ARP mode. This argument
can be replaced by one of the following keywords:
dynamic—Displays only dynamic ARP entries. A dynamic ARP entry is learned
through an ARP request and completed with the MAC address of the external
host.
static—Displays only static ARP entries. A static ARP entry is a statically
configured (permanent) ARP.
IP-ADDRESS
[/MASK]
(Optional) Displays the entries associated with a specific host or network entry
that is associated with an external host.
INTERFACE-ID (Optional) Displays only the ARP table entries associated with this interface such
as, for example, a VLAN interface such as vlan100.
Switch#show arp
Address Hardware Addr IP Interface Type
-------------------------------------------------------------------
10.108.42.112 00-00-a7-10-4b-af vlan100 Static
10.108.42.114 00-00-a7-10-85-9b vlan200 Dynamic
10.108.42.121 00-00-a7-10-68-cd vlan300 Dynamic
Total Entries: 3
Switch#
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