With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cGgsnIeUnknownMsgs
Cisco Ggsn Ie Unknown Messages
1.3.6.1.4.1.9.9.240.1.1.45
The number of GTP messages received with an information element of an unknown type.
Back to CISCO-GGSN-MIB MIB page.
IPHost Network monitor allows you to monitor cGgsnIeUnknownMsgs 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.