With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwmStatMaximumConnections
cwm Stat Maximum Connections
1.3.6.1.4.1.9.9.145.1.2.1.1.6
The maximum number of connections for which the statistics are being collected.
Back to CISCO-WAN-MODULE-MIB MIB page.
IPHost Network monitor allows you to monitor cwmStatMaximumConnections 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.
