With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alL2tpStatsSessionCLID
ALTIGA L2tp Statistics Session CLID
1.3.6.1.4.1.3076.2.1.2.16.3.1.16
This object identifies the Calling Line ID that the LAC obtained from the network for the session. If no CLID was provided then a null string will be returned.
Back to ALTIGA-L2TP-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alL2tpStatsSessionCLID on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.