With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ospfv3StubMetric
ospfv3 Stub Metric
1.3.6.1.3.102.1.2.1.10
The metric value advertised for the default route into Stub and NSSA areas.
Back to OSPFV3-MIB MIB page.
IPHost Network monitor allows you to monitor ospfv3StubMetric 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.