SkyPoint 
    Communications is a full service Internet Service Provider. 
  Preparing To Configure TCP/IP
  In order to run MacPPP 
    or any other PPP program, the user MUST properly configure the TCP control 
    panel. Macintoshes use several different versions of TCP. This section is 
    intended to help you determine which TCP software you have. Once you know 
    your TCP software type, continue on to the section describing how to set up 
    that software.