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Date:	Mon, 12 Nov 2007 14:33:42 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	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: Patrick McHardy <kaber@...sh.net>
Date: Mon, 12 Nov 2007 18:21:35 +0100

> Do you really consider that a realistic choice? Who is going to
> remove interfaces that are in use just to see traffic for other
> VLANs? Sniffing specific VLANs can always be done on the VLAN
> device itself.

Change the example to wanting to see traffic on another
physical switch.

How is this any different?

> IMO its more a question of what we want promiscous mode to mean,
> and I tend to agree with Joonwoo that it should receive all packets.

On what LAN?

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.
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