With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alFilterStatsOutPktsRx
ALTIGA Filter Statistics Out Packets Rx
1.3.6.1.4.1.3076.2.1.2.9.2.1.6
The total number of outbound packets received on this interface. This count includes filtered (dropped) packets.
Back to ALTIGA-FILTER-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alFilterStatsOutPktsRx 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.