NEC N8406-022A - Manual (Page 42)

Command Line Interface 42
ARP information
Command: /info/arp
[Address Resolution Protocol Menu]
find - Show a single ARP entry by IP address
port - Show ARP entries on a single port
vlan - Show ARP entries on a single VLAN
addr - Show ARP entries for switch's interface
dump - Show all ARP entries
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 Menu options.
Table 30 ARP information
Command Usage
find Displays a single ARP entry by IP address. For example, 192.4.17.101
port Displays the ARP entries on a single port.
vlan <1-4095> Displays the ARP entries on a single VLAN.
addr Displays the ARP address list: IP address, IP mask, MAC address, and VLAN
flags.
dump 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)
ARP address list information
Command: /info/arp/addr
IP address IP mask MAC address VLAN
--------------- --------------- ----------------- ----
205.178.18.66 255.255.255.255 00:70:cf:03:20:04 4095
Show all ARP entry information
Command: /info/arp/dump
IP address Flags MAC address VLAN Port
--------------- ----- ----------------- ---- ----
192.168.2.4 00:50:8b:b2:32:cb 4095 19
192.168.2.19 00:0e:7f:25:89:b5 4095 19
192.168.2.61 P 00:0f:6a:ed:46:00 4095
The Flag field provides additional information about an entry. If no flag displays, the entry is normal.
Table 31 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.