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SubjectRe: 2.6.37 regression: adding main interface to a bridge breaks vlan interface RX
On 17/01/11 16:00, Ben Hutchings wrote:
> On Sun, 2011-01-16 at 14:09 +0000, Simon Arlott wrote:
>> [ 1.666706] forcedeth 0000:00:08.0: ifname eth0, PHY OUI 0x5043 @ 16, addr 00:e0:81:4d:2b:ec
>> [ 1.666767] forcedeth 0000:00:08.0: highdma csum vlan pwrctl mgmt gbit lnktim msi desc-v3
>>
>> I have eth0 and eth0.3840 which works until I add eth0 to a bridge.
>> While eth0 is in a bridge (the bridge device is up), eth0.3840 is unable
>> to receive packets. Using tcpdump on eth0 shows the packets being
>> received with a VLAN tag but they don't appear on eth0.3840. They appear
>> with the VLAN tag on the bridge interface.
> [...]
>
> This means the behaviour is now consistent, whether or not hardware VLAN
> tag stripping is enabled. (I previously pointed out the inconsistent
> behaviour in <http://thread.gmane.org/gmane.linux.network/149864>.) I
> would consider this an improvement.

Shouldn't the kernel also prevent a device from being both part of a
bridge and having VLANs? Instead everything appears to work except
incoming traffic.

--
Simon Arlott


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