[1161] in linux-net channel archive
Re: X.25 related material wanted...
daemon@ATHENA.MIT.EDU (Philip Petrescu)
Mon Oct 2 21:44:41 1995
Date: Sat, 1 Oct 1994 14:42:06 +0200 (GMT+0200)
From: Philip Petrescu <philip@ldjnb.sfos.ro>
To: Alan Cox <iialan@iifeak.swan.ac.uk>
Cc: linux-net@vger.rutgers.edu, linux-admin@vger.rutgers.edu,
rom-unix@applicom.co.il
In-Reply-To: <m0szgdb-00013hC@iiit.swan.ac.uk>
On Mon, 2 Oct 1995, Alan Cox wrote:
> > Have you looked at KA9Q for Linux. Another option would be to look at the
> > AX25 Support In Linux.
>
> AX.25 and X.25 are very different. X.25 is built on two layers
>
> [ IP / X.29 / whatever ]
> [ X.25 Protocol Layer [end-end]]
> [ LAPB protocol layer [hop-hop]]
>
> Amateur radio AX.25 is a single LAPB like layer with some extensions and
> clean ups like repeater support that radio needs.
>
>
> LAPB itself is not that complex and is done by the hardware on a good high
> speed board, or software on the low end cheap ones. X.25 is quite complex
> but for carrying IP over X.25 you only need implement a subset of the
> requirements for full X.25.
>
> If you are bored there is also X.29 you can sit on top of X.25 and that then
> provides a highly efficient virtual terminal service.
Thank you all for the answers about X.25, although many of you thought
that I want to make a radio connection to Internet. Well, I'm not. I was
only asking about how can someone make an internet IP host on a machine
running Linux with the help of a VSAT (Very Small Aperture Terminal)
parabolic antenna connected to a HUB situated in Budapest at BankNet.
As I already said, I must use X.25 because of the restrictions made by
the owners of this HUB. So here goes again:
Has someone did/tried this before ? Must I make an IP gateway daemon
for translating X.25 packets to IP packets or is it already done by
someone else ? Is there any hardware (like a network card) that does this ?
Please Alan, tell me what to do. You must know...
Philip.
---------------
Philip Petrescu
SysAdm ldjnb.sfos.ro
E-Mail: philip@ldjnb.sfos.ro
