Lock network source to a VM?

Hello,

I am using 5.0.3 on my MBP with Win8 x64 and would like to do the following:

1. lock the ethernet connection to my Win8 VM so that only it can use it

2. use wifi for my OS X host and have that network source not available to the VM

Is this possible in Fusion?  I think this is something may be supported in Parallels.

THx