Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!ncar!boulder!stan!dancer!imp From: imp@dancer.Solbourne.COM (Warner Losh) Newsgroups: comp.protocols.tcp-ip Subject: Re: Are Commercial TCPs Berkeley Code Or Custom? Message-ID: <1990Jul27.221131.12142@Solbourne.COM> Date: 27 Jul 90 22:11:31 GMT Sender: news@Solbourne.COM Organization: Solbourne Computer, Inc. Lines: 25 : Are most of the commercial TCP/IPs sold by companies like Wollongong, Excelan, : and FTP software written from scratch, or is the code basically just modified : Berkeley code? WIN/TCP for VMS version 5.1 is based on BSD 4.3 Mutlinet (by TGV, sometimes sold by Excelan) is based on BSD 4.3 Tahoe Excelan? Don't know for sure. Fusion: They wrote their own, then ported it to VMS WIN/TCP for DOS version 4.1 is based on a very old version of IP/TCP written at MIT. Most of the original code is gone now, but the copyright notices remain. FTP software is also based on the MIT IP/TCP, but I don't know how much they have changed it. Based on what I've seen from them at trade shows and on the net, I would guess that this is quite alot. I also got the impression that is president had a great deal to do with the original IP/TCP implemetation. The large number of people that use BSD is a reflection of its unrestrictive licensing requirements. Warner -- Warner Losh imp@Solbourne.COM Boycott Lotus. #include