With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cMsdpRequestsGroupAddress
Cisco Msdp Requests Group Address
1.3.6.1.4.1.9.10.130.1.1.4.1.1
The group address that, when combined with the mask in this entry, represents the group range to which this row applies.
Back to CISCO-IETF-MSDP-MIB MIB page.
IPHost Network monitor allows you to monitor cMsdpRequestsGroupAddress on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.