With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiRouterTable
Cisco IS-IS Router Table
1.3.6.1.4.1.9.10.118.1.1.7
The set of hostnames and router ID.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiRouterTable 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.