pansiot@ISIS.U-STRASBG.FR (Jean-Jacques Pansiot Departement d'Informatique Universite Louis Pasteur Strasbourg FRANCE) (11/28/90)
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. I assume that either UDP or TCP would be between IP and X25 ? Is there any product like some kind of terminal server with X25 lines and ethernet attachment that would permit X25 virtual circuit between two (distant )ports and over IP ? Obviously, I assume some IP-only routers along the path. Thank you for any information Jean-Jacques Pansiot, Universite Louis Pasteur, Strasbourg, FRANCE 7, rue Descartes 67084 STRASBOURG CEDEX FRANCE Email: pansiot@isis.u-strasbg.fr Tel: (33) 88 41 64 28 Fax: (33) 88 61 90 69
dupont@inria.inria.fr (Francis Dupont) (11/29/90)
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
mussar@bcars53.uucp (G. Mussar) (12/01/90)
In article <1900@inria.inria.fr> dupont@inria.inria.fr (Francis Dupont) writes: >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 I would be interested in seeing some "standard" for carrying X.25 on TCP/IP. It would be useful being able to have multiple vendors X.25/IP products talking the same language. I have my own version which I use when remote applications wish to access my X.25 port on my Sun across the LAN. Does your implementation allow for M/D/Q bits set in packets? Has Cisco documented how their implementation works? -- ------------------------------------------------------------------------------- Gary Mussar |Bitnet: mussar@bnr.ca | Phone: (613) 763-4937 BNR Ltd. | UUCP: ..uunet!bnrgate!bcars53!mussar | FAX: (613) 763-2626
satz@CISCO.COM (Greg Satz) (12/03/90)
Our X.25 over TCP carries the X.25 packet intact so the M/D/Q bits are conveyed from source to destination. Greg
smart@mel.dit.csiro.au (Robert Smart) (12/04/90)
In article <9012031018.AA18270@ucbvax.Berkeley.EDU> satz@CISCO.COM (Greg Satz) writes: >Our X.25 over TCP carries the X.25 packet intact so the M/D/Q bits are >conveyed from source to destination. > We would also like to run X.25 over our IP network (don't ask). It would be nice if someone would threaten to publish an RFC on a protocol for doing this. This would flush out Cisco's intentions: do they intend to standardize their protocol or do they intend to IBM their customers (any noun can be a verb: see recent posting on computer jargon). Bob Smart <smart@mel.dit.csiro.au>