With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alAdminAuthClientRoundTripTime
Altiga Administrator Authentication Client Round Trip Time
1.3.6.1.4.1.3076.2.1.2.39.2.1.4
The time interval between the most recent Access-Reply/Access-Challenge and the Access-Request that matched it from this ADMIN authentication server.
Back to ADMIN-AUTH-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alAdminAuthClientRoundTripTime 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.