netdev - Re: [PATCH 1/1] netfilter: Add possibility to turn off netfilters defrag per netns

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Message-ID: <20120104174035.GB3489@1984>
Date:	Wed, 4 Jan 2012 18:40:35 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Hans Schillstrom <hans.schillstrom@...csson.com>
Cc:	Jan Engelhardt <jengelh@...ozas.de>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	Patrick McHardy <kaber@...sh.net>,
	"netfilter-devel@...r.kernel.org" <netfilter-devel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"hans@...illstrom.com" <hans@...illstrom.com>
Subject: Re: [PATCH 1/1] netfilter: Add possibility to turn off netfilters
 defrag per netns

On Wed, Jan 04, 2012 at 12:48:35PM +0100, Hans Schillstrom wrote:
> I like that idea, an "early" table at prio -500 with PREROUTING.
> There is also a need for a new flag "--allfrags"
> i.e. all fragments needs to be sorted out and sent to same dest for defrag.
> 
> ex.
> iptables -t early -A PREROUTING -i eth0 --allfrags -j NOTRACK

New tables add too much overhead. We have discussed this before with
Patrick.

Since this still remains specific to your needs, I think you can
remove nf_conntrack module in your setup.

I don't come with one sane setup that may want selectively defragment
some traffic yes and other not.

Am I missing anything else?
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