While importing a DHCP scope from a Windows 2003 to 2008 server I encountered an error:
"Error while importing option "6"."
This is a reference to the scope options in DHCP. Option 6 is the DNS server, option 15 is DNS Domain Name, etc.
To remedy this particular error delete the offending options form the DHCP's "Server Options" and then attempt the import again.
Export (2003/2008): netsch dhcp server export c:\[filename.txt] all
Import: netsch dhcp server import c:\[filename.txt] all
More details on the error can be found here: