With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alTelnetStatsSessionOutNetOctets
ALTIGA Telnet Statistics Session Out Net Octets
1.3.6.1.4.1.3076.2.1.2.11.2.1.12
The per session number of Telnet octets that were transmitted to the network since the system was booted.
Back to ALTIGA-TELNET-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alTelnetStatsSessionOutNetOctets on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.