From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 20 Sep 2007 11:55:06 +0000
Subject: Re: [LARTC] ifb and ppp
Message-Id: <46F25F9A.7010007@trash.net>
List-Id: <lartc.vger.kernel.org>
References: <200709191417.43768.mail@frithjof-hammer.de>	<46F11E76.8030202@trash.net> <200709192342.03646.mail@frithjof-hammer.de>
In-Reply-To: <200709192342.03646.mail@frithjof-hammer.de>
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To: Frithjof Hammer <mail@frithjof-hammer.de>
Cc: lartc@mailman.ds9a.nl, Linux Netdev List <netdev@vger.kernel.org>, jamal <hadi@cyberus.ca>

Please keep netdev and myself CCed.

Frithjof Hammer wrote:
>>Does this patch help?
> 
> 
> A further examiniation:
> [...]
> printk ("fri: mein type %x\n",dev->type);
>                 switch (dev->type) {
> 
> [...]
> shows this:
> 
> root@router:/usr/src/linux-source-2.6.21# dmesg | grep fri
> fri: mein type 1
> 
> that is defined as ARPHRD_ETHER in include/linux/if_arp.h.
> 
> As far as i understand this means, that my ppp0 device is recognized as 
> Ethernetinterface.
> 
> Any further help/ideas?


I misread the code, the device it looks at in tcf_mirred_init is
the target device (ifb). So what it does is check whether the
target device wants a link layer header and if it does restores
the one from the source device. So currently it seems impossible
to get rid of the PPP(oE) header.

Jamal, is that how its supposed to work?
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