Hello, I am trying to find some information on how the utililty UUIDGEN.EXE generates sequential UUID's (with the -x parameter) and is there a specific range of MAC addresses that it is limited to? I am getting a WARNING message unable to determine network address, using a certain range of MAC addresses, although the same addresses work fine in Windows 2008 R2. Thanks,

Hi ,A detailed explanation about UUID is provided in the below article along with the switches.Please go through the article and if you have further questions please do not hesitate to post back.http://msdn.microsoft.com/en-us/library/aa373928(VS.85).aspx