With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cafSessionClientFramedIpPool
Cisco Authentication Framework Session Client Framed Ip Pool
1.3.6.1.4.1.9.9.656.1.4.1.1.11
Indicates the name of the address pool from which the session's client IP address is assigned.
Back to CISCO-AUTH-FRAMEWORK-MIB MIB page.
IPHost Network monitor allows you to monitor cafSessionClientFramedIpPool on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.