With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniRouteAddrInfo
pnni Route Address Info
1.3.6.1.4.1.353.5.4.1.1.19.4.1.14
A reference to MIB definitions specific to the particular routing protocol which is responsible for this reachable address prefix, as determined by the value specified in the route's pnniRouteAddrProto value. If this information is not present, its value should be set to the OBJECT IDENTIFIER zeroDotZero.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniRouteAddrInfo on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.