From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 05 May 2008 20:10:10 +0200
From: Patrick McHardy <kaber@trash.net>
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Subject: Re: [Bridge] Preventing packet reassembly
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To: Leigh Sharpe <lsharpe@pacificwireless.com.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>, bridge@lists.linux-foundation.org

Leigh Sharpe wrote:
> I have iptables rules on the management interface of the box, but not on
> any of the ports which participate in bridging.
> By removing iptables from my bootup, I get a properly functioning
> bridge.

Connection tracking performs defragmentation for all packets,
independant of the ruleset. For briding the packets should get
re-fragmented when leaving the bridge device though.

Please try "iptables -t raw -I PREROUTING -i <br-dev> -j TRACE",

load the ipt_LOG module and post the output.