netdev - Re: 2.6.37 regression: adding main interface to a bridge breaks vlan interface RX

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Date:	Mon, 7 Feb 2011 18:24:45 -0800
From:	Jesse Gross <jesse@...ira.com>
To:	chriss <mail_to_chriss@....net>
Cc:	netdev@...r.kernel.org
Subject: Re: 2.6.37 regression: adding main interface to a bridge breaks vlan
 interface RX

On Sun, Feb 6, 2011 at 11:37 AM, chriss <mail_to_chriss@....net> wrote:
> Jesse Gross <jesse <at> nicira.com> writes:
>
>>
>> You should either attached a bridge to a vlan device or stack a vlan
>> device on the bridge port depending on what you are trying to achieve.
>>
>> The bridge handler takes all packets of the device that it is attached
>> to, so having a vlan also attached to the same device will not work.
>> You may get different results on older kernels depending on what NIC
>> you were using but that was a bug.
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>>
>
>
> Hi and thanks for your reply
>
> I tried that.
>
> I had under 2.6.36.3 following combination:
>
> eth1 in br0 -> all traffic without vlan id
> eth1.3 -> traffic with vlan 3
>
> with 2.6.37 i should do the following
> eth1 in br0 -> traffic w/o vlans
> and br0.3 -> traffic with vlan id 3
>
> But still there is no rx for vlan 3.
> Any suggestions? Or am i missing something?

That configuration should work (and I've tested it in the past).  I
would try running tcpdump on the various interfaces in the path (eth1,
br0, br0.3) to see where traffic is flowing or not.
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