With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rprClientDayOutUcastClassCOctets
rpr Client Day Out Ucast Class C Octets
1.0.8802.17.1.1.1.4.3.1.25
The number of client to MAC classC unicast octets
Back to IEEE-802DOT17-RPR-MIB MIB page.
IPHost Network monitor allows you to monitor rprClientDayOutUcastClassCOctets 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.