From: Patrick McHardy <kaber@trash.net>
To: Krzysztof Halasa <khc@pm.waw.pl>
Cc: David Miller <davem@davemloft.net>,
djohnson+linux-kernel@sw.starentnetworks.com,
jes@trained-monkey.org, mchan@broadcom.com,
ram.vepa@neterion.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, bguo@sw.starentnetworks.com
Subject: Re: [PATCH 1/2] NET: Re-add VLAN tag for devices incapable of keeping it
Date: Wed, 07 Nov 2007 00:55:01 +0100 [thread overview]
Message-ID: <4730FED5.20803@trash.net> (raw)
In-Reply-To: <m3y7db45ga.fsf@maximus.localdomain>
Krzysztof Halasa wrote:
> Patrick McHardy <kaber@trash.net> writes:
>
>> I think there is one more case that matters, which is briding
>> from a device with VLAN stripping for a VLAN not configured
>> locally. The tag will be stripped and will be lost for forwarded
>> packets.
>
> I think we should drop such packets on RX. Anyway we shouldn't
> forward them.
I believe you misunderstand the configuration I was thinking about:
eth0.1000 br0
| |
eth0 with VLAN stripping
Its slightly different that I thought though, __vlan_hwaccel_rx
drops packets for unknown vids, so as soon as you configure a VLAN
locally on the same device that is used for a bridge, no VLAN
packets will be forwarded at all.
Slightly inconsistent with how other layered devices work, but
can be avoided by adding the VLAN to br0.
next prev parent reply other threads:[~2007-11-06 23:55 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-31 18:43 expected behavior of PF_PACKET on NETIF_F_HW_VLAN_RX device? Dave Johnson
2007-10-31 19:33 ` Stephen Hemminger
2007-11-01 1:06 ` Ben Greear
2007-11-01 1:10 ` David Miller
2007-11-01 1:23 ` Stephen Hemminger
2007-11-01 1:31 ` Ben Greear
2007-11-01 4:50 ` David Miller
2007-11-01 15:04 ` Ben Greear
2007-11-01 21:35 ` David Miller
2007-11-01 21:36 ` Dave Johnson
2007-11-01 21:48 ` Rick Jones
2007-11-01 21:59 ` David Miller
2007-11-01 22:04 ` Rick Jones
2007-11-01 22:07 ` David Miller
2007-11-01 23:26 ` Rick Jones
2007-11-05 17:46 ` [PATCH 1/2] NET: Re-add VLAN tag for devices incapable of keeping it Dave Johnson
2007-11-05 18:00 ` Patrick McHardy
2007-11-05 23:15 ` David Miller
2007-11-06 0:21 ` Patrick McHardy
2007-11-06 0:35 ` David Miller
2007-11-06 18:03 ` Krzysztof Halasa
2007-11-06 18:56 ` Ben Greear
2007-11-06 20:08 ` Krzysztof Halasa
2007-11-06 23:55 ` Patrick McHardy [this message]
2007-11-05 17:47 ` [PATCH 2/2] " Dave Johnson
2007-11-06 2:39 ` Ramkrishna Vepa
2007-11-06 18:28 ` Ramkrishna Vepa
2007-11-06 18:34 ` Dave Johnson
2007-11-01 21:58 ` expected behavior of PF_PACKET on NETIF_F_HW_VLAN_RX device? David Miller
2007-11-02 18:08 ` Dave Johnson
2007-11-02 21:20 ` David Miller
2007-11-02 21:52 ` Michael Chan
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