ARP table

The ARP table is used to determine the destination MAC addresses of the network nodes, as well as the VLANs and ports from where the nodes are reached.

To view the ARP cache in the CLI:

get system arp

To view the ARP cache in the system in the CLI:

diagnose ip arp list

Sample output:

index=14 ifname=internal 224.0.0.5 01:00:5e:00:00:05 state=00000040 use=72203 confirm=78203 update=72203 ref=1

index=13 ifname=dmz 192.168.3.100 state=00000020 use=1843 confirm=650179 update=644179 ref=2 ? VIP

index=13 ifname=dmz 192.168.3.109 02:09:0f:78:69:ff state=00000004 use=71743 confirm=75743 update=75743 ref=1

index=14 ifname=internal 192.168.11.56 00:1c:23:10:f8:20 state=00000004 use=10532 confirm=10532 update=12658 ref=4

To remove the ARP cache:

execute clear system arp table

To remove a single ARP entry:

diagnose ip arp delete <interface name> <IP address>

To add static ARP entries:

config system arp-table