Mac OS 9: File Sharing Over TCP/IP Requires AppleTalk To Be Active

This article explains why AppleTalk must be active even when trying to perform file sharing using TCP/IP.
AppleTalk must be active to use the implementation of TCP/IP filesharing included with Mac OS 9. If you do not want AppleTalk active over your network connection, you can set the AppleTalk control panel to another port such as "Remote Only."
Published Date: Feb 20, 2012