A/UX does support MacTCP calls in Mac32, which allows Mac OS programs to make outgoing connections. However, A/UX does not have any support for incoming sessions to connect to software that is listening as a server in MacTCP.
A/UX, being a form of UNIX, already has facilities to route incoming connections to UNIX processes (such as ftpd, telnetd, and sendmail), but does not provide any support for handing off connections to programs that use MacTCP.
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