With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfwConnectionStatService
Cisco Firewall Connection Statistic Service
1.3.6.1.4.1.9.9.147.1.2.2.2.1.1
The identification of the type of connection providing statistics.
Back to CISCO-FIREWALL-MIB MIB page.
IPHost Network monitor allows you to monitor cfwConnectionStatService on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.