From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Graf <tgraf@suug.ch>
Subject: Re: [PATCH 2/3] [VLAN]: Update iif when receiving via VLAN device
Date: Fri, 30 Jun 2006 15:36:58 +0200
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Cc: jamal <hadi@cyberus.ca>, Patrick McHardy <kaber@trash.net>,
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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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* Nicolas Dichtel <nicolas.dichtel@6wind.com> 2006-06-30 15:16
> >That creates a nice loop on ingress. Upon reentering the
> >stack with skb->dev set to eth0 again we'll go through the
> >same ingress filters as the first time and we'll hit ifb0
> >again over and over. Are you suggesting everyone has to
> >insert a pass action matching input_dev in order to escape
> >the loop when using ifb?
> Bit 8 of skb->tc_verd is set by IFB, so packet isn't reclassify.
> This bit avoid the loop.

Right, my mistake. Just making classification impossible after
going through an ifb device certainly seems like a perfect
idea, nice!