With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgkZoneRasAddress
Cisco Gatekeeper Zone Ras Address
1.3.6.1.4.1.9.10.40.1.1.1.1.5
The RAS Signal transport address of the gatekeeper supporting the zone.
Back to CISCO-GATEKEEPER-MIB MIB page.
IPHost Network monitor allows you to monitor cgkZoneRasAddress 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.
