linux-kernel - Re: [PATCH 2/2] [e1000 VLAN] Disable vlan hw accel when promiscuous mode

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Date:	Mon, 12 Nov 2007 14:28:45 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	auke-jan.h.kok@...el.com
Cc:	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: "Kok, Auke" <auke-jan.h.kok@...el.com>
Date: Mon, 12 Nov 2007 09:12:40 -0800

> Actually I think this patch removes a choice from the user.
> 
> Before this patch, the user can sniff all traffic by disabling vlans, or a
> specific vlan only by leaving vlans on when going into promisc mode.
> 
> After this patch, the user has no choice but to sniff all vlans at all times.
> 
> I don't think that that is such a good improvement.

I agree.

Look at the VLAN setting as being just like moving the
ethernet cable from one switch to another.

There is no logical difference.
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