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Date:	Mon, 12 Nov 2007 14:57:16 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	cfriesen@...tel.com
Cc:	kaber@...sh.net, auke-jan.h.kok@...el.com, joonwpark81@...il.com,
	netdev@...r.kernel.org,
	djohnson+linux-kernel@...starentnetworks.com,
	linux-kernel@...r.kernel.org, e1000-devel@...ts.sourceforge.net
Subject: Re: [PATCH 2/2] [e1000 VLAN] Disable vlan hw accel when
 promiscuous mode

From: "Chris Friesen" <cfriesen@...tel.com>
Date: Mon, 12 Nov 2007 16:43:24 -0600

> David Miller wrote:
> 
> > When you select VLAN, you by definition are asking for non-VLAN
> > traffic to be elided.  It is like plugging the ethernet cable
> > into one switch or another.
> 
> For max functionality it seems like the raw eth device should show 
> everything on the wire in promiscuous mode.
> 
> If we want to sniff only the traffic for a specific vlan, we can sniff 
> the vlan device.

VLAN settings are a filter of sorts, much like plugging into
one switch or another filters traffic physically.

If you don't want that filter, turn the VLAN settings off.
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