linux-kernel - Re: mss to pmtu clamping partially broken?

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Message-ID: <4689300C.9050802@domdv.de>
Date:	Mon, 02 Jul 2007 19:04:12 +0200
From:	Andreas Steinmetz <ast@...dv.de>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
CC:	Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>,
	netfilter-devel@...ts.netfilter.org
Subject: Re: mss to pmtu clamping partially broken?

Jan Engelhardt wrote:
> Do you really need clamping? It's a hack, since TCP should do MSS negotiation
> itself. (Of course it may happen that some routers are broken.) But usually not
> for incoming packets.

You never know when you hit ICMP blackholes, broken routers and other
evil things. Better safe than sorry so clamping is the way to go for me.

-- 
Andreas Steinmetz                       SPAMmers use robotrap@...dv.de
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