Command:

show arp


Mode:

Router#


Syntax:

show arp

 

Syntax Description:

This command has no arguments or keywords.

Command Description:

 

To display the entries in the Address Resolution Protocol (ARP) table, use the show arp privileged EXEC command.


Example:

The following is sample output from the show arp command:

Router# show arp

Protocol   Address           Age (min)    Hardware Addr     Type    Interface

Internet   131.108.42.112    120         0000.a710.4baf    ARPA    Ethernet3

AppleTalk  4028.5            29           0000.0c01.0e56   SNAP     Ethernet2

Internet   131.108.42.114    105          0000.a710.859b   ARPA     Ethernet3

AppleTalk  4028.9            -           0000.0c02.a03c    SNAP    Ethernet2

Internet    131.108.42.121    42           0000.a710.68cd    ARPA     Ethernet3

Internet    131.108.36.9      -            0000.3080.6fd4    SNAP    TokenRing0

AppleTalk  4036.9            -            0000.3080.6fd4    SNAP    TokenRing0

Internet   131.108.33.9      -            0000.0c01.7bbd    SNAP     Fddi0

Table 3 describes the significant fields shown in the display.

Table 3   show arp Field Descriptions

Field

Description

Protocol

Protocol for network address in the Address field.

Address

The network address that corresponds to the Hardware Address.

Age (min)

Age in munutes of the cache entryh. A hyphen (-) means the address is local.

Hardware Addr

LAN hardware address of a MAC address that corresponds to the network address.

Type

Indicates the encapsulation type the Cisco IOS software is using for the network address in this entry. Possible values include:

  • ARPA
  • SNAP
  • ETLK (EtherTalk)
  • SMDS

Interface

Indicates the interface associated with this network address.

 

 


Misconceptions:

           None.


Related Commands:

            None. 


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