gateway#show ip dhcp binding
Bindings from all pools not associated with VRF:
IP address Client-ID/ Lease expiration Type
Hardware address/
User name
192.168.2.23 XXXX.XXX.XXXX.XX Jan 12 2009 05:12 PM Automatic
192.168.2.27 XXXX.XXXX.XXXX.XX Jan 12 2009 05:20 PM Automatic
gateway#
XXXX.XXXX.XXXX.XX = MAC address of server or network appliance.