With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgrtInstNumberRoutes
Cisco IP Transfer Point GRT Inst Number Routes
1.3.6.1.4.1.9.9.334.1.2.1.1.7
The number of routes in the cgrtRouteTable Table.
Back to CISCO-ITP-GRT-MIB MIB page.
IPHost Network monitor allows you to monitor cgrtInstNumberRoutes 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.