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SHA1
Monitoring ARP Details
Purpose
Display information about ARP.
Action
To display information about ARP:
host1#show arp
Address Age Hardware Addr Interface
172.31.192.217 21340 00d0.58f2.67e0 loopback1
192.168.1.0 20730 00e0.09ed.5312 fastEthernet6/0 *
192.168.1.1 12550 00e0.b06a.4c75 fastEthernet6/0 *
192.168.1.217 21600 0090.1a00.0230 fastEthernet6/0 *
192.168.1.255 21600 00f0.c2d1.1200 fastEthernet6/0 *
12.40.0.2 24320 0020.6393.4233 atm5/0.1
172.18.2.1 21600 0020.bed2.8738 atm5/1.1
172.18.2.2 21600 0020.5b91.60f2 atm5/1.1
172.31.192.206 21600 00d0.43b5.1032 atm5/1.1Meaning
Table 14 lists the show arp command output fields.
Table 14: show arp Output Fields
Field Name | Field Description |
|---|---|
Address | IP address of the entry |
Age | Time to live for this entry in seconds |
Hardware Addr | Physical (MAC) address of the entry |
Interface | Interface-specifier of the entry (for example, fastEthernet6/0 is an Ethernet interface on slot 6, port 0) *—Indicates that an ARP entry was added because of an arp validate command, rather than just an arp command. |
