With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdsStaticBindingsMacAddress
CISCO DHCP SNOOPING Static Bindings Mac Address
1.3.6.1.4.1.9.9.380.1.4.2.1.2
This object indicates the MAC address of a DHCP client host.
Back to CISCO-DHCP-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor cdsStaticBindingsMacAddress on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.