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Cisco Bug: CSCvu02443 - IP ARP Inspection validate drops ARP reply packets even when Arp inspection is disabled.

Last Modified

Sep 10, 2020

Products (1)

  • Cisco Catalyst 9300 Series Switches

Known Affected Releases

16.9.4 16.9.5

Description (partial)

Switch drops ARP reply packets with mac address in header different than the mac address in ARP info while the arp inspection is not enabled for the vlan.

ip arp inspection validate src-mac dst-mac ip
ip arp inspection log-buffer entries 50

ip dhcp snooping vlan 10
ip dhcp snooping

ANCHOVY#sh ip arp ins

Source Mac Validation      : Enabled
Destination Mac Validation : Enabled
IP Address Validation      : Enabled
No active or enabled vlans on switch.
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