With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ospfAreaRangeEffect
ospf Area Range Effect
1.3.6.1.2.1.14.5.1.5
Subnets subsumed by ranges either trigger the advertisement of the indicated summary (advertiseMatching) or result in the subnet's not being advertised at all outside the area.
Back to OSPF-MIB MIB page.
IPHost Network monitor allows you to monitor ospfAreaRangeEffect on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.