With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cIpAddressIfIndex
Cisco Ip Address If Index
1.3.6.1.4.1.9.10.86.1.1.2.1.3
The index value which uniquely identifies the interface to which this entry is applicable. The interface identified by a particular value of this index is the same interface as identified by the same value of the IF-MIB's ifIndex.
Back to CISCO-IETF-IP-MIB MIB page.
IPHost Network monitor allows you to monitor cIpAddressIfIndex 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.
