With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alL2tpStatsTunnelSendSeq
ALTIGA L2tp Statistics Tunnel Send Sequence
1.3.6.1.4.1.3076.2.1.2.16.2.1.23
This object contains the next send sequence number for the control channel.
Back to ALTIGA-L2TP-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alL2tpStatsTunnelSendSeq on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.
