From: "John W. Linville" <linville@tuxdriver.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [RFC v2] mac80211: disallow bridging managed/adhoc interfaces
Date: Tue, 17 Nov 2009 21:59:20 -0500 [thread overview]
Message-ID: <20091118025920.GA4588@tuxdriver.com> (raw)
In-Reply-To: <jwvy6m4bnqp.fsf-monnier+gmane.linux.kernel.wireless.general@gnu.org>
On Tue, Nov 17, 2009 at 08:59:03PM -0500, Stefan Monnier wrote:
> > A number of people have tried to add a wireless interface
> > (in managed mode) to a bridge and then complained that it
> > doesn't work. It cannot work, however, because in 802.11
> [...]
> > To avoid such mistakes in the future, disallow adding a
> > wireless interface to a bridge.
>
> As someone who's been bitten by this, I fully support this change.
> Still, it makes me wonder: my broadcom-based home-router using the wl.o
> driver can be set in "client bridge" mode. How does it work?
If I'm not mistaken, that has a bunch of code embedded in it that
among other things can do a layer-2 version of NAT to rewrite the
MAC adresses for frames on the air.
YMMV...
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
WARNING: multiple messages have this Message-ID (diff)
From: "John W. Linville" <linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
To: Stefan Monnier <monnier-CRDzTM1onBSWkKpYnGOUKg@public.gmane.org>
Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [RFC v2] mac80211: disallow bridging managed/adhoc interfaces
Date: Tue, 17 Nov 2009 21:59:20 -0500 [thread overview]
Message-ID: <20091118025920.GA4588@tuxdriver.com> (raw)
In-Reply-To: <jwvy6m4bnqp.fsf-monnier+gmane.linux.kernel.wireless.general-mXXj517/zsQ@public.gmane.org>
On Tue, Nov 17, 2009 at 08:59:03PM -0500, Stefan Monnier wrote:
> > A number of people have tried to add a wireless interface
> > (in managed mode) to a bridge and then complained that it
> > doesn't work. It cannot work, however, because in 802.11
> [...]
> > To avoid such mistakes in the future, disallow adding a
> > wireless interface to a bridge.
>
> As someone who's been bitten by this, I fully support this change.
> Still, it makes me wonder: my broadcom-based home-router using the wl.o
> driver can be set in "client bridge" mode. How does it work?
If I'm not mistaken, that has a bunch of code embedded in it that
among other things can do a layer-2 version of NAT to rewrite the
MAC adresses for frames on the air.
YMMV...
John
--
John W. Linville Someday the world will need a hero, and you
linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org might be all we have. Be ready.
--
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next prev parent reply other threads:[~2009-11-18 3:03 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-17 13:46 [RFC] mac80211: disallow bridging managed/adhoc interfaces Johannes Berg
2009-11-17 13:46 ` Johannes Berg
2009-11-17 13:58 ` John W. Linville
2009-11-17 13:58 ` John W. Linville
2009-11-17 14:04 ` Johannes Berg
2009-11-17 14:04 ` Michael Buesch
2009-11-17 14:06 ` John W. Linville
2009-11-17 14:06 ` John W. Linville
2009-11-17 14:07 ` Johannes Berg
2009-11-17 14:07 ` Johannes Berg
2009-11-17 16:37 ` Stephen Hemminger
2009-11-17 16:37 ` Stephen Hemminger
2009-11-17 16:43 ` Johannes Berg
2009-11-17 16:43 ` Johannes Berg
2009-11-17 17:04 ` Stephen Hemminger
2009-11-17 17:04 ` Stephen Hemminger
2009-11-17 17:05 ` Johannes Berg
2009-11-17 20:41 ` Dan Williams
2009-11-17 20:41 ` Dan Williams
2009-11-17 20:48 ` [RFC v2] " Johannes Berg
2009-11-17 22:42 ` Julian Calaby
2009-11-17 22:42 ` Julian Calaby
2009-11-17 22:46 ` Johannes Berg
2009-11-17 22:50 ` Julian Calaby
2009-11-17 22:42 ` Stephen Hemminger
2009-11-17 22:45 ` Johannes Berg
2009-11-18 1:59 ` Stefan Monnier
2009-11-18 1:59 ` Stefan Monnier
2009-11-18 2:59 ` John W. Linville [this message]
2009-11-18 2:59 ` John W. Linville
2009-11-18 10:52 ` Johannes Berg
2009-11-18 10:52 ` Johannes Berg
2009-12-11 12:39 ` [RFC] " Markus Baier
2009-12-11 13:00 ` Johannes Berg
2009-12-11 13:18 ` Markus Baier
2009-12-11 13:58 ` Johannes Berg
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