Dynamic ARP Inspection (DAI)
Dynamic ARP Inspection (DAI) has following characteristics
– Enable DHCP shooping first
– Create ARP ACL for static IPs
– By default all ports are untrusted when feature is enabled
– 15 PPS rate-limit for untrusted ports by default
ip arp inspection vlan 13 interface GigabitEthernet1/0/33 ip arp inspection trust interface GigabitEthernet1/0/34 ip arp inspection limit 10
arp access-list TEST-ARP-ACL permit ip host 10.10.10.10 mac AAAA.BBBB.CCCC 0.0.0 ip arp inspection filter TEST-ARP-ACL vlan 13
errdisable recovery cause arp-inspection errdisable recovery interval 30
ip arp inspection validate src-mac dst-mac ip
show arp access-list show ip arp inspection vlan 13 show ip arp inspection statistics vlan 13 show interface status err-disabled