With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
monitorSourcePort
monitor Source Port
1.3.6.1.4.1.9.5.1.8.2
monitoring source port within a module or the monitoring source Virtual LAN. To monitor multiple source ports, this object should be set to 0 and monitorAdminSourcePorts should be configured
Back to CISCO-STACK-MIB MIB page.
IPHost Network monitor allows you to monitor monitorSourcePort 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.