With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cldRealTotalConnections
cld Real Total Connections
1.3.6.1.4.1.9.9.99.1.2.1.1.4
The total number of connections to this machine since reboot.
Back to CISCO-LOCAL-DIRECTOR-MIB----B MIB page.
IPHost Network monitor allows you to monitor cldRealTotalConnections on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.