Information Commands

ARP information

The Address Resolution Protocol (ARP) information includes IP address and MAC address of each entry, address status flags, VLAN, and port for the address, and port referencing information.

The following table describes the Address Resolution Protocol commands. Table 31 ARP information

Command

Usage

 

 

show ip arp find <IP address>

Displays a single ARP entry by IP address.

 

Command mode: All except User EXEC

 

 

show ip arp interface port <port

Displays the ARP entries on a single port.

number>

Command mode: All except User EXEC

 

 

 

show ip arp vlan <1-4095>

Displays the ARP entries on a single VLAN.

 

Command mode: All except User EXEC

 

 

show ip arp

Displays all ARP entries, including:

 

IP address and MAC address of each entry

 

Address status flag

 

The VLAN and port to which the address belongs

 

The ports which have referenced the address (empty if no

 

port has routed traffic to the IP address shown)

 

Command mode: All except User EXEC

 

 

show ip arp reply

Displays the ARP address list: IP address, IP mask, MAC address,

 

and VLAN flags.

 

Command mode: All except User EXEC

 

 

Show all ARP entry information

The following command displays ARP information:

show ip arp

Command mode: All except User EXEC

IP address

Flags

MAC address

VLAN

Port

--------------- -----

-----------------

----

----

192.168.2.4

 

00:50:8b:b2:32:cb

1

18

192.168.2.19

 

00:0e:7f:25:89:b5

1

17

192.168.2.61

P

00:0f:6a:ed:46:00

1

 

The Flag field provides additional information about an entry. If no flag displays, the entry is normal. Table 32 ARP dump flag parameters

Flag

 

Description

 

 

 

Permanent entry created for switch IP interface.

P

 

 

 

 

Indirect route entry.

R

 

 

 

 

Unresolved ARP entry. The MAC address has not been learned.

U

 

 

 

 

 

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HP 445942-001 manual ARP information, Show all ARP entry information, Show ip arp, Flag Description