With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cIpForwardProto
Cisco Ip Forward Protocol
1.3.6.1.4.1.9.10.85.2.1.7
The routing mechanism via which this route was learned. Inclusion of values for gateway routing protocols is not intended to imply that hosts should support those protocols.
Back to CISCO-IETF-IP-FORWARD-MIB MIB page.
IPHost Network monitor allows you to monitor cIpForwardProto 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.