9416f643_Network_Security__Description_and_exceptions
Mac OS X file sharing Stanford campus network. [Description and exceptions] 
The Apple Filing Protocol (AFP) used by this service is not a major security risk like Windows file sharing. If you need to connect to the file sharing service on your office Mac from home or while traveling with a portable computer, install and use the Stanford public VPN client to get through the firewall.
Network Security
Description and exceptions