With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgmGdoiGmTekStatus
Cisco GDOI Management Gdoi Gm Tek Status
1.3.6.1.4.1.9.9.759.1.3.6.1.11
The status of the TEK Policy/SA. When this status value is queried, one of the following is returned: inbound(1), outbound(2), notInUse(3).
Back to CISCO-GDOI-MIB MIB page.
IPHost Network monitor allows you to monitor cgmGdoiGmTekStatus 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.