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From: "Henning P. Schmiedehausen" <hps@intermeta.de>
To: linux-kernel@vger.kernel.org
Subject: Re: RFC: p&p ipsec without authentication
Date: Mon, 16 Dec 2002 09:20:27 +0000 (UTC)	[thread overview]
Message-ID: <atk5sr$a06$1@forge.intermeta.de> (raw)
In-Reply-To: Pine.LNX.4.50L.0212151745360.2711-100000@imladris.surriel.com

Rik van Riel <riel@conectiva.com.br> writes:

>Hi,

>I've got a crazy idea.  I know it's not secure, but I think it'll
>add some security against certain attacks, while being non-effective
>against some others.

While the idea itself is nice, it would allow many attackers on your
host to "dive" under IDS systems or avoid stateful firewalls which do
protocol verification. And IDS system is "a three letter acronym
listening on your traffic". And you want to avoid that. =:-)

It won't traverse many firewalls either (because they won't let IPSEC
pass) and you might get in trouble with NAT and protocols that need
NAT fixup.

And you basically divide the Internet into "Linux <-> Linux" and "the
rest". :-)

	Regards
		Henning

-- 
Dipl.-Inf. (Univ.) Henning P. Schmiedehausen       -- Geschaeftsfuehrer
INTERMETA - Gesellschaft fuer Mehrwertdienste mbH     hps@intermeta.de

Am Schwabachgrund 22  Fon.: 09131 / 50654-0   info@intermeta.de
D-91054 Buckenhof     Fax.: 09131 / 50654-20   

  parent reply	other threads:[~2002-12-16  9:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-15 20:34 RFC: p&p ipsec without authentication Rik van Riel
2002-12-15 21:59 ` Andrew McGregor
2002-12-16  9:20 ` Henning P. Schmiedehausen [this message]
2002-12-16 12:06   ` Andrew McGregor

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