With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alL2tpStatsSessionRecvSeqAck
ALTIGA L2tp Statistics Session Receive Sequence Ack
1.3.6.1.4.1.3076.2.1.2.16.3.1.41
This object contains the last receive sequence number that was acknowledged back to the tunnel peer for the session.
Back to ALTIGA-L2TP-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alL2tpStatsSessionRecvSeqAck on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.