With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cseFlowMcastResultSrc
CISCO SWITCH ENGINE Flow Mcast Result Source
1.3.6.1.4.1.9.9.97.1.2.13.1.3
The source address of the multicast layer 3 flow. This object is deprecated and replaced by cseFlowMcastResultAddrType and cseFlowMcastResultSource.
Back to CISCO-SWITCH-ENGINE-MIB MIB page.
IPHost Network monitor allows you to monitor cseFlowMcastResultSrc on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.