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Date:      Tue, 25 Oct 2005 15:58:17 +0200
From:      Jeremie Le Hen <jeremie@le-hen.org>
To:        VANHULLEBUS Yvan <vanhu_bsd@zeninc.net>
Cc:        freebsd-net@freebsd.org
Subject:   Re: IPSec session stalls
Message-ID:  <20051025135817.GN14063@obiwan.tataz.chchile.org>
In-Reply-To: <20051021071039.GA1876@zen.inc>
References:  <4358082A.4060409@vwsoft.com> <43581E7F.5080305@vwsoft.com> <20051021071039.GA1876@zen.inc>

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> Not sure: what you described in your first mail also looks like a
> "basic" fragmentation problem, which can be easily solved by
> decreasing MTU on traffic endpoints (you can also play with TCPMSS on
> one gate, but this will only solve TCP problems...).
> 
> The pf interaction may only be a side effect of a fragmentation
> problem.

Hi also have problems with my IPSec tunnel.  IIRC from tests that I made,
this is a Path MTU Discovery problem.

I described a similar problem here, but never succeeded to resolve it,
unfortunately.  Note that I didn't use pf.

It is described here :
http://lists.freebsd.org/pipermail/freebsd-net/2005-July/007899.html

Regards,
-- 
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >



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