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Re: "IP Masquerading for applications"

daemon@ATHENA.MIT.EDU (Jos Vos)
Wed Apr 17 14:16:04 1996

From: Jos Vos <jos@xos.nl>
To: jsanchez@esegi.es (Julio Sanchez)
Date: 	Wed, 17 Apr 1996 17:30:46 +0200 (MET DST)
Cc: submit-linux-dev-net@ratatosk.yggdrasil.com
In-Reply-To: <x020lnazgc.fsf@melmac.gmv.es> from "Julio Sanchez" at Apr 17, 96 12:59:15 pm

> ftp://ftp.esegi.es/pub/linux/catch
> 
> It is TCP only and has a few gotchas (does not know how to bind a fake
> address but no one seems to care about this problem anyway). It is for
> Linux 1.2.x and will not apply easily to 1.3.x, though they should be
> easy to redevelop (it is pretty short).

Interesting; We have been looking at a transparent-proxy implementation
without knowing about this patch, and ended up with about the same basic
concept.  It must be the right way... ;-)

But, unless you also deal with several other little details (fragments,
ICMP, ...), this patch may cause headaches in real IP life, so it indeed
is merely "proof-of-concept".

We hope to get an opportunity to do some real work on a more complete
transparent-proxy implementation in Linux sometime soon.

-- 
--    Jos Vos <jos@xos.nl>
--    X/OS Experts in Open Systems BV   |   Phone: +31 20 6938364
--    Amsterdam, The Netherlands        |     Fax: +31 20 6948204


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