With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoRptrPortIllegalAddrTotalCount
cisco Rptr Port Illegal Addr Total Count
1.3.6.1.4.1.9.9.22.1.1.1.15
This is the total count of all cccurences of any illegal source addresses heard on the port since start-up. Note: Illegal source addresses may be different, may be the same. This counter is a *total* count from this port.
Back to CISCO-REPEATER-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoRptrPortIllegalAddrTotalCount 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.