skype

I got MOL running and love it!! I now have Fink on OS X and can run and
access my Linux partition and now with MOL I can do the opposite. I am
almost exclusively running Linux except for Skype. 
It seems that the EN(2) connection used to network the Linux (Ubuntu)
connection causes some issues? When trying to add services in Mac system
preferences in MOL I get a warning that my Internet provider will
disconnect me if I enable the EN(2) port.
 I cannot call with Skype in MOL-I get a connection failure. Any help? 

Thanks