With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ospfv3RouterId
ospfv3 Router Id
1.3.6.1.3.102.1.1.1
A 32-bit integer uniquely identifying the router in the Autonomous System. To ensure uniqueness, this may default to the value of one of the router's IPv4 interface addresses if IPv4 is configured on the router.
Back to OSPFV3-MIB MIB page.
IPHost Network monitor allows you to monitor ospfv3RouterId 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.