Date: Wed, 15 Mar 2017 19:15:39 +0100
From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Linus =?iso-8859-1?Q?L=FCssing?= <linus.luessing@c0d3.blue>
Cc: Florian Westphal <fw@strlen.de>, netdev@vger.kernel.org,
        "David S . Miller" <davem@davemloft.net>,
        Stephen Hemminger <stephen@networkplumber.org>,
        Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>,
        bridge@lists.linux-foundation.org, netfilter-devel@vger.kernel.org,
        coreteam@netfilter.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] bridge: ebtables: fix reception of frames DNAT-ed to
 bridge device
Message-ID: <20170315181539.GA31875@salvia>
References: <20170315031811.22714-1-linus.luessing@c0d3.blue>
 <20170315102608.GB24366@breakpoint.cc>
 <20170315104211.GA24409@salvia>
 <20170315142720.GU15692@otheros>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <20170315142720.GU15692@otheros>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 757
Lines: 16

On Wed, Mar 15, 2017 at 03:27:20PM +0100, Linus L?ssing wrote:
> On Wed, Mar 15, 2017 at 11:42:11AM +0100, Pablo Neira Ayuso wrote:
> > I'm missing then why redirect is not then just enough for Linus usecase.
> 
> For my usecase, the MAC address is configured by the user from a
> Web-UI. It may or may not be the one from the bridge device.
> 
> Besides, found it counter intuitive that DNAT did not work here
> and took me some time to find out why. At least I didn't read about
> any such known limitations of the dnat target in the ebtables
> manpage.

Could you update ebtables dnat to check if the ethernet address
matches the one of the input bridge interface, so we mangle the
->pkt_type accordingly from there, instead of doing this from the
core?