With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdaiVlanAclDenied
Cisco Dynamic ARP Inspection Vlan Acl Denied
1.3.6.1.4.1.9.9.374.1.4.1.1.6
This object indicates the number of ARP packets denied by the configured ACL.
Back to CISCO-DYNAMIC-ARP-INSPECTION-MIB MIB page.
IPHost Network monitor allows you to monitor cdaiVlanAclDenied on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.