Vworkspace 8.01 - MAC range for provisionning virtual desktops

HI,

i'm discovering Vworkspace.  I set-up the connection broker, the virtualization plateform (V-center), the virtualization server...

 I try to create some desktop but i don't see anything about the possibility to configure MAC range in the options (except for Hyper-v in the locations properties);

My desktops are well created but they receive an APIPA because my DHCP server doesn't allocate IP to unknown MAC...

So i'd like to create a MAC range in the vworkspace and then integrate this range in my dhcp.

Where is this option ?

Thanks for your help.

A.