With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alDhcpStatsSessLeaseDuration
ALTIGA Dhcp Statistics Session Lease Duration
1.3.6.1.4.1.3076.2.1.2.20.2.1.6
The duration of the current lease.
Back to ALTIGA-DHCP-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alDhcpStatsSessLeaseDuration 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.