With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cewNeighborMacAddress
Cisco EnergyWise Neighbor Mac Address
1.3.6.1.4.1.9.9.683.1.9.1.22
This object specifies the MAC Address of the Cisco EnergyWise endpoint that is connected to the Cisco EnergyWise Entity.
Back to CISCO-ENERGYWISE-MIB MIB page.
IPHost Network monitor allows you to monitor cewNeighborMacAddress 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.