With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDhcpv4ServerClientTimeRemaining
Cisco Dynamic Host Configuration protocol Server Client Time Remaining
1.3.6.1.4.1.9.10.102.1.4.4.1.5
The number of seconds until the lease expires. A value of 4294967295 (i.e., 0xFFFFFFFF) SHOULD be used for leases that have a lease time which is 'infinite' and for BOOTP leases.
Back to CISCO-IETF-DHCP-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDhcpv4ServerClientTimeRemaining on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.