With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alPptpStatsTotalSessions
ALTIGA Pptp Statistics Total Sessions
1.3.6.1.4.1.3076.2.1.2.3.1.8
This object returns the total number of sessions, including those that did not reach the established state.
Back to ALTIGA-PPTP-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alPptpStatsTotalSessions 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.