With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiRouterHostName
Cisco IS-IS Router Host Name
1.3.6.1.4.1.9.10.118.1.1.7.1.3
The hostname listed in LSP, or zero-length string if none.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiRouterHostName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.