资料来源 : Free On-Line Dictionary of Computing

Point-to-Point Tunneling Protocol
     
         (PPTP) A {tunneling protocol} for
        connecting {Windows NT} {clients} and {servers} over {Remote
        Access Services} (RAS).  PPTP can be used to create a {Virtual
        Private Network} between computers running NT.  It is an
        extension of {PPP} sponsored by {Microsoft}.
     
        {Microsoft Point to Point Encryption} may be used with PPTP to
        provide an encrypted connection but PPTP itself does not use
        encryption.
     
        Compare: {Layer Two Tunneling Protocol}.
     
        [Origin?  Standard?  Document?]
     
        (1998-09-23)