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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 30 ARP information
Command
show ip arp find <IP address>
show ip arp interface <port number>
show ip arp vlan <1-4095>
show ip arp
show ip arp reply
Show all ARP entry information
The following command displays ARP information:
show ip arp
Command mode: All except User EXEC
IP address
--------------- -----
192.168.2.4
192.168.2.19
192.168.2.61
The Flag field provides additional information about an entry. If no flag displays, the entry is normal.
Table 31 ARP dump flag parameters
Flag
P
R
U
ARP address list information
The following command displays ARP address list information:
show ip arp reply
Command mode: All except User EXEC
IP address
--------------- ---------------
205.178.18.66
205.178.50.1
Usage
Displays a single ARP entry by IP address.
Command mode: All except User EXEC
Displays the ARP entries on a single port.
Command mode: All except User EXEC
Displays the ARP entries on a single VLAN.
Command mode: All except User EXEC
Displays all ARP entries, including:
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
Displays the ARP address list: IP address, IP mask, MAC
address, and VLAN flags.
Command mode: All except User EXEC
Flags
MAC address
-----------------
00:50:8b:b2:32:cb
00:0e:7f:25:89:b5
P
00:0f:6a:ed:46:00
Description
Permanent entry created for switch IP interface.
Indirect route entry.
Unresolved ARP entry. The MAC address has not been learned.
IP mask
255.255.255.255
255.255.255.255
N8406-023 1Gb Intelligent L3 Switch Command Reference Guide (ISCLI) 39
IP address and MAC address of each entry
Address status flag
The VLAN and port to which the address belongs
VLAN
----
1
1
1
MAC address
VLAN Flags
----------------- ---- -----
00:70:cf:03:20:04 4095
00:70:cf:03:20:04
Port
----
18
17
1
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