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From: dupont@inria.inria.fr (Francis Dupont)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: X25 over IP
Summary: Cisco X.25 over TCP
Message-ID: <1900@inria.inria.fr>
Date: 28 Nov 90 22:19:48 GMT
References: <9011271721.AA06559@isis.u-strasbg.fr>
Organization: INRIA, Rocquencourt, France.
Lines: 14

In article <9011271721.AA06559@isis.u-strasbg.fr>, pansiot@ISIS.U-STRASBG.FR (Jean-Jacques Pansiot Departement d'Informatique Universite Louis Pasteur Strasbourg FRANCE) writes:
> 
> Is there a standard way to run X25 over IP (not the other way around, IP
> over X25 ).  We would like to use our IP network to carry non IP traffic
> over X25.
> ...

Cisco has a X.25 over TCP. It is useful for instance for PAD (X.3/X.28/X.29).
(OSI applications can use RFC 1086 "ISO-TP0 bridge between TCP and X.25"
but it is not possible for native usage of X.25 like PAD).
The transport of X.25 packets over TCP connections is very simple,
I've implemented it for Suns and I'm writing a description of it.

Francis.Dupont@inria.fr