Issues to be aware of with X.25 on Linux over Ethernet & Cisco?
Bernhard,
One other thing you need to be aware of if you're going the linux X.25 / xotd.c route - the X.25 protocol implementation in the Linux kernel is not complete.
For example, it doesn't support Permanent Virtual Circuits (although there may well have patches developed for it since we worked with it). There was also a recent posting to the list about a packet level negotiation option which was defaulted incorrectly (and is now corrected, thanks to the poster).
If you are successful with your development / investigation, let us know - we could act as an alternate site for supplying the code to the community.
Best regards,
Derek
-------- Original Message --------
Return-Path: <[email protected]>
Received: from vger.kernel.org (vger.kernel.org [12.107.209.244]) by ns2.wanware.com (8.11.6p2/8.11.6) with ESMTP id i73C5hh02639; Tue, 3 Aug 2004 08:05:44 -0400
Received: ([email protected]) by vger.kernel.org via listexpand id S265887AbUHCMFe (ORCPT <rfc822;[email protected]> + 1 other); Tue, 3 Aug 2004 08:05:34 -0400
Received: ([email protected]) by vger.kernel.org id S265900AbUHCMFe (ORCPT <rfc822;linux-x25-outgoing>); Tue, 3 Aug 2004 08:05:34 -0400
Received: from mail.zmailer.org ([62.78.96.67]:7336 "EHLO mail.zmailer.org") by vger.kernel.org with ESMTP id S265887AbUHCMF0 (ORCPT <rfc822;[email protected]>); Tue, 3 Aug 2004 08:05:26 -0400
Received: (mea@mea-ext) by mail.zmailer.org id S258300AbUHCMFX (ORCPT <rfc822;[email protected]>); Tue, 3 Aug 2004 15:05:23 +0300
Date: Tue, 3 Aug 2004 15:05:23 +0300
From: Matti Aarnio <[email protected]>
To: Bernhard Roth <[email protected]>
Cc: [email protected]
Subject: Re: Newbie: X.25 on Linux over Ethernet & Cisco?
Message-ID: <[email protected]>
References: <001f01c4793f$5d898290$2b02010a@w8x00020>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <001f01c4793f$5d898290$2b02010a@w8x00020>
Sender: [email protected]
Precedence: bulk
X-Mailing-List: [email protected]
X-AntiVirus: checked by SentiNet Avira Milter [6.26.0.10]
X-Spam-Checker-Version: SpamAssassin 2.63-sentinet (2004-01-11) on ns2.wanware.com
X-Spam-Report: * -4.9 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000]
X-Spam-Status: No, hits=-4.9 required=5.0 tests=BAYES_00 autolearn=ham version=2.63-sentinet
X-Spam-Level:
Quoted 9 lines · Bernhard Roth
Hello!
I hope somebody can give me some hints using X.25.
The basic task is to write a linux program which can receive and send X.25 packets to the public X.25 network.
I wanted to use a Cisco router to interface the X.25 side (X.31) to ethernet.
Unfortunately I'm quite unexperienced doing this so I have some questions:
I haven't seen it anywhere in use, but about 10 years ago an INFORMATIONAL
RFC was written with title: cisco Systems X.25 over TCP (XOT)
That is RFC 1613.
Quoted 2 lines
- Which protocol shall be used on the Linux-Box' site to communicate with the Cisco
TCP connection in which XOT is run.
Quoted 2 lines
- How is the X.25 routing working? Is it possible to forward and received X.25 packets to the Linux-Box?
per the XOT specification: yes.
Quoted 2 lines
- Do I receive only the userdata or do I need to decode the X.25 packets (I mean connecting phase etc...)
The XOT carries all of the X.25 packets, so you do need to process the X.25 protocol.
Quoted 1 line
- XOT seems to be fine (isn't it?) but cannot find as all URL's are invalid
ftp://ftp.rfc-editor.org/in-notes/rfc1613.txt
Quoted 1 line
- Are there any examples available?
http://www.deakin.edu.au/~jamesmiw/xotd-0.04.tar.gz
(googling for "linux xotd" did find that rather quickly)
There seems to be some newer version of the xotd.c (the daemon for Linux), and I was able to find it from Google cache. Just for you I did copy it into:
ftp://ftp.zmailer.org/linux/xotd.c
There is also copy of that xotd-0.04.tar.gz package.
That process acts as an interface in between Linux kernel X.25, and XOT services in a cisco.
Quoted 5 lines
Thanks for any help :)
Regards
Bernhard Roth
/Matti Aarnio
-
To unsubscribe from this list: send the line "unsubscribe linux-x25" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Signature · 5 lines
Derek Vair The Software Group Limited Tel: +1(705)725-9999x22 642 Welham Road Fax: +1(705)725-9666 Barrie, Ontario e-mail: [email protected] Canada L4N 9A1 web: www.wanware.com