With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alAddressStatsGrpHeldAddress
Address Statistics Group Held Address
1.3.6.1.4.1.3076.2.1.2.19.5.1.4
IP Address currently being held; not available for assignment.
Back to ALTIGA-ADDRESS-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alAddressStatsGrpHeldAddress 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.