With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ospfv3AreaAggregatePrefix
ospfv3 Area Aggregate Prefix
1.3.6.1.3.102.1.12.1.5
The IPv6 Prefix.
Back to OSPFV3-MIB MIB page.
IPHost Network monitor allows you to monitor ospfv3AreaAggregatePrefix 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.