With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgmGdoiKeyServerRekeysPushed
Cisco GDOI Management Gdoi Key Server Rekeys Pushed
1.3.6.1.4.1.9.9.759.1.2.1.1.5
The sequence number of the last rekey sent from the Key Server to its registered Group Members for this GDOI group.
Back to CISCO-GDOI-MIB MIB page.
IPHost Network monitor allows you to monitor cgmGdoiKeyServerRekeysPushed 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.