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Date: Sun, 17 Mar 2002 21:06:18 -0800
From: Mike Fedyk <mfedyk@matchmail.com>
To: "David S. Miller" <davem@redhat.com>
Cc: alan@lxorguk.ukuu.org.uk, davids@webmaster.com,
        linux-kernel@vger.kernel.org
Subject: Re: RFC2385 (MD5 signature in TCP packets) support
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On Sun, Mar 17, 2002 at 08:09:49PM -0800, David S. Miller wrote:
>    From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>    Date: Sat, 16 Mar 2002 01:43:05 +0000 (GMT)
>    
>    Dave's suggestion is netfilter - and netfilter is fast enough I
>    think. You only need filters on stuff you have already decided is
>    for your IP too.
> 
> After some thinking, the TAP idea is even nicer as it guarentees zero
> overhead, make it such that you only route the BGP stuff over the
> device having the TAP attached (make a dummy eth alias just for this
> purpose).
> 

... You'd have to use netfilter to mark the correct packets, then route on
that mark to the dummy interface.

How is that more efficient?
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