Looking in my loaded modules, 'cifs' is loading libdes, fscache and libarc4. My main question is why does a cifs filesystem that is mounted from the network need libdes and libarc if it is not using any encrypted connections on the wire? (FWIW wire a a dedicated line between a Win WS, and a linux file server, but encryption has never been needed. So what is causing these modules to be loaded in now?