With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cEigrpNextHopInterface
Cisco Enhanced Interior Gateway Protocol Next Hop Interface
1.3.6.1.4.1.9.9.449.1.3.1.1.14
The interface through which the next hop IP address is reached to send network traffic to the destination network represented by the topology entry.
Back to CISCO-EIGRP-MIB MIB page.
IPHost Network monitor allows you to monitor cEigrpNextHopInterface 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.