With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwspInFilterFailures
cwsp In Filter Failures
1.3.6.1.4.1.351.140.1.2.5.1.1.5
This object shows the number of incoming Point-to-Point(p2p) and Point-to-MultiPoint(p2mp) SVC/SPVC call attempts which failed due to address filtering on this interface.
Back to CISCO-WAN-SVC-MIB MIB page.
IPHost Network monitor allows you to monitor cwspInFilterFailures on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.