User manual

Information Commands 33
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 24 ARP dump flag parameters
Flag Description
P Permanent entry created for switch IP interface.
R Indirect route entry.
U Unresolved ARP entry. The MAC address has not been learned.
ARP address list information
The following command displays ARP address list information:
show ip arp reply
Command mode: All except User EXEC
IP address IP mask MAC address VLAN Flags
--------------- --------------- ----------------- ---- -----
205.178.18.66 255.255.255.255 00:70:cf:03:20:04 P
205.178.50.1 255.255.255.255 00:70:cf:03:20:06 1
205.178.18.64 255.255.255.255 00:70:cf:03:20:05 1
This screen displays all entries in the ARP cache.
IP information
The following command displays Layer 3 information:
show layer3 information
Command mode: All
Interface information:
1: 47.80.23.243 255.255.254.0 47.80.23.255, vlan 1, up
Default gateway information: metric strict
1: 47.80.22.1, up
2: 47.80.225.2, up
The following interface and default gateway information is displayed:
• Interface number
• IP address
• IP mask
• IP broadcast address
• Operational status