Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!bellcore!bellcore-2!envy.bellcore.com!karn
From: karn@envy.bellcore.com (Phil R. Karn)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: X.25 terminal/port servers out there?
Message-ID: <1990Jun30.013630.15111@bellcore-2.bellcore.com>
Date: 30 Jun 90 01:36:30 GMT
References: <4355.26879a8d@vax5.cit.cornell.edu> <1990Jun27.195629.25792@watserv1.waterloo.edu>
Sender: usenet@bellcore-2.bellcore.com (Poster of News)
Reply-To: karn@thumper.bellcore.com
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Organization: Packet Communications Research Group (Bellcore)
Lines: 15


In article <1990Jun27.195629.25792@watserv1.waterloo.edu>,
broehl@watserv1.waterloo.edu (Bernie Roehl) writes:
|> Hmm.  Don't know if this will work, but there are HDLC cards for PCs...
|> could you do it with a PC, an ethernet card, an HDLC card and NOS?

It's possible, but it would take some work. You'd have to write an X.25
packet layer (level 3). Also, the LAPB in AX.25 has diverged a bit from
standard CCITT X.25, and you might have to make some changes to make it
interoperate properly. And the LAPB would have to be extricated from the
AX.25 addressing stuff. I tried to make it modular, but having never
actually separated the two sections I wouldn't want to bet that it would
go perfectly the first time.

Phil