With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpimExtBidirDFWinnerAddress
cpim Ext Bidir DF Winner Address
1.3.6.1.4.1.9.10.120.1.1.6.1.4
The Inetaddress of the winner of the DF Election process. Type of InetAddress presented in this object is same as that of cpimExtBidirDFRPAddressType in INDEX clause
Back to CISCO-IETF-PIM-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cpimExtBidirDFWinnerAddress 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.