With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdaiIfConfigEntry
Cisco Dynamic ARP Inspection If Config Entry
1.3.6.1.4.1.9.9.374.1.3.1.1
A row instance contains the configuration to enable or disable trust state for Dynamic ARP Inspection at each physical interface capable of this feature.
Back to CISCO-DYNAMIC-ARP-INSPECTION-MIB MIB page.
IPHost Network monitor allows you to monitor cdaiIfConfigEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.