From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: [PATCH 1/2] bridge: leave carrier on for empty bridge
Date: Fri, 2 Sep 2011 15:11:00 -0700
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Cc: "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org
To: Nicolas de =?ISO-8859-1?B?UGVzbG/8YW4=?=
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On Fri, 02 Sep 2011 23:39:03 +0200
Nicolas de Peslo=FCan <nicolas.2p.debian@gmail.com> wrote:

> Le 02/09/2011 19:22, Stephen Hemminger a =E9crit :
> > This resolves a regression seen by some users of bridging.
> > Some users use the bridge like a dummy device.
> > They expect to be able to put an IPv6 address on the device
> > with no ports attached during boot.
> >
> > Note: the bridge still will reflect the state of ports in the
> > bridge if there are any added.
>=20
> Doesn't this jeopardize the behavior introduced in 1faa4356a3bd89ea11=
fb92752d897cff3a20ec0e
> "bridge: control carrier based on ports online"?
>=20
> If the user starts the DHCP client before adding the first port to th=
e bridge, the DHCP client will=20
> have a carrier and start the autoconfiguration process. This was the =
old behavior, but you fixed it.
>=20
> 	Nicolas.
>=20

There is no perfect solution.
If DHCP works then IPv6 breaks?