From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Kierdelewicz <marek@piasta.pl>
Subject: Re: using iptables with tun/tap interfaces? no rule sees tun/tap
 interface traffic
Date: Sun, 29 Aug 2010 13:15:59 +0200
Message-ID: <20100829131559.23abd652@catus>
References: <4C7A3E75.5020202@wpkg.org>
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To: Tomasz Chmielewski <mangoo@wpkg.org>
Cc: netfilter@vger.kernel.org

Hi Tomasz,

>tcpdump: WARNING: tap0: no IPv4 address assigned

So you're bridging.

Make sure /proc/sys/net/bridge/bridge-nf-call-iptables is set to 1.

Good luck.

Best regards,
Marek