With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cIpForwardNextHop
Cisco Ip Forward Next Hop
1.3.6.1.4.1.9.10.85.2.1.4
On remote routes, the address of the next system en route; Otherwise, 0.0.0.0.
Back to CISCO-IETF-IP-FORWARD-MIB MIB page.
IPHost Network monitor allows you to monitor cIpForwardNextHop on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.