With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgprsCgGatewayGroupStatusOldCgAddr
Cisco GPRS Charging Gateway Group Status Old Charging Address
1.3.6.1.4.1.9.9.192.1.5.4.1.3
This object indicates the address of the previous active charging gateway. The type of address will same as the one present in cgprsCgGatewayGroupStatusAddrType.
Back to CISCO-GPRS-CHARGING-MIB MIB page.
IPHost Network monitor allows you to monitor cgprsCgGatewayGroupStatusOldCgAddr 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.