With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cGgsnExtTraceSecondaryUrl
cisco Gateway GPRS Support Node Ext Trace Secondary Url
1.3.6.1.4.1.9.9.647.1.2.14.1.3
This object represents the secondary URL to which the subscriber trace information needs to be transferred when the primary URL is unreachable and the trace activated user anchors to the gateway.
Back to CISCO-GGSN-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cGgsnExtTraceSecondaryUrl on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.