With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
agentLoginSessionIPAddress
agent Login Session IP Address
1.3.6.1.4.1.14179.1.2.1.1.1.3
Agent Login Session IP Address of the switch
Back to AIRESPACE-SWITCHING-MIB MIB page.
IPHost Network monitor allows you to monitor agentLoginSessionIPAddress 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.