Current Version: 1.1.2 (For pre Mac OS 8.0 users only. Superseded by Open Transport 2.7.6 in Mac OS 9.1)
NOTE: for older Macs only. Open Transport is Apple's new networking technology for the MacOS. It contains native code for PowerMacs and is easier to configure than MacTCP. It's more memory-hungry, however. For PCI-based PowerMacs, Open Transport is the only officially Apple-endorsed way to make a TCP/IP-based Internet connection. On other machines, however, Open Transport is merely an optional replacement for MacTCP. Version 1.1.2 fixes a few bugs present in 1.1.1 (but not the infamous server performance issue). Open Transport 1.1 (available only as part of System 7.5.3 or higher) or 1.1.1 is a prerequisite. If you're using an older Mac (68020 or older), stick with MacTCP. You'll use less memory and have fewer headaches. If you're using a fast 6803- or 68040-based machine, you'll see a noticeable speed increase, and it will be worth upgrading if you have the extra 600K or so of RAM to spare.
User Reviews
Mac Os X Download
'I have been using Open Transport 1.1.2 for 2 weeks on a Performa 6116CD, 60 MHz 601 processor. My Mac is connected to an ethernet network (a full T1 internet connection) and I have noticed at least a 20% increase in speed when accessing Internet. Pages download faster, and I have seen no freezing (I use Netscape v[ersion] 2). I have setup several Macs for Internet connection[s] recently using MacOS 7.5.5, OT and OT/PPP (for friends) and have seen a corresponding increase in speed for dial-up connections. OT and OT/PPP are also much easier and quicker to configure for successful dial-up access.' —Ken Wolf
Open Transport was the name given by Apple Inc. To its implementation of the Unix-originated System V STREAMS networking stack.Based on code licensed from Mentat's Portable Streams product, Open Transport was built to provide the classic Mac OS with a modern TCP/IP implementation, replacing MacTCP.Apple also added its own implementation of AppleTalk to the stack to support legacy networks.
Mac Os X Leopard
Software download library for vintage Mac software. Getting a beige Mac up and running can be very challenging these days. Older software updates are very hard to find, and of course you need Stuffit to download Stuffit:) This web page is my attempt at getting everything you could ever need together in.
Download the stable Mac OSX installer for OpenTTD, a clone of the Microprose game 'Transport Tycoon Deluxe', a popular game originally written by Chris Sawyer. OpenTTD attempts to mimic the original game as closely as possible while extending it with new features. Supported OS versions: Mac OS X.
Open Transport 2.6 addresses DHCP issues in Mac OS 9, and prevents Macintosh computers from being used in certain types of Denial of Service (DoS) issues.