Take a look at /etc/dhcp3/dhcpd.conf. You should see LMCE managed devices in the regular machines group...
Say you have another PC on your internal LAN that you want to configure as DHCP but have a non-changing IP, you can use pluto-admin to add a "File Server" (under Advanced, Configuration, Devices, CORE, create Child Device) then just not add any shares.
Have fun,
Roy