With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiISAdjIPAddrEntry
Cisco IS-IS IS Adj IP Address Entry
1.3.6.1.4.1.9.10.118.1.6.3.1
Each entry contains one IP Address reported by a neighboring Intermediate System in its IIH PDUs.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiISAdjIPAddrEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.