  IP Authentication Mechanisms? 
 The Question is:
 
What are the authentication mechanisms of REXEC on a VAX platform?
 
 The Answer is:
 
  Terse questions beget terse answers -- and often answers to questions
  other than those originally intended.
 
  Please contact the vendor for the specific TCP/IP package in question.
 
  If the package is TCP/IP Services for OpenVMS V5.0, the FTP and rexec
  packages support OpenVMS external authentication.
 
  If you have specific questions of TCP/IP Services for OpenVMS, please
  contact the customer support center.
