netdev - Re: [Bridge] Can linux kernel bridge forward 802.1q tagged vlan packets?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20130822234941.4affc863@catus>
Date:	Thu, 22 Aug 2013 23:49:41 +0200
From:	Marek Kierdelewicz <marek@...sta.pl>
To:	Stephan von Krawczynski <skraw@...net.com>
Cc:	bridge@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: Re: [Bridge] Can linux kernel bridge forward 802.1q tagged vlan
 packets?

Hi,

>My general idea is to bridge tagged vlan packets from a physical
>interface (intel) to a virtual interface (virtio in qemu) and not
>losing the tags, so the qemu guest can use vconfig and friends to get
>some vlan interfaces. Is this possible and are there any additional
>steps necessary besides the usual bridge configuration?

I'm using this setup with KVM virtualization (Qemu's successor). It
didn't work with default nic type for guest (realtek I think) as 802.1q
tags were not preserved properly in one of the directions. I don't
remember specifics. Anyway using e1000 driver instead of default fixed
it. Works like a charm.

Best regards,
Marek Kierdelewicz
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html