With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ospfv3IfDesignatedRouter
ospfv3 If Designated Router
1.3.6.1.3.102.1.7.1.12
The Router ID of the Designated Router.
Back to OSPFV3-MIB MIB page.
IPHost Network monitor allows you to monitor ospfv3IfDesignatedRouter on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.