From owner-freebsd-net@FreeBSD.ORG  Fri Dec 17 23:03:53 2004
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Date: Fri, 17 Dec 2004 15:03:49 -0800
From: Mike Hunter <mhunter@ack.Berkeley.EDU>
To: Brooks Davis <brooks@one-eyed-alien.net>
Message-ID: <20041217230349.GA15905@ack.Berkeley.EDU>
References: <005801c4e42a$a1825890$9f90a8c0@donatas>
	<20041217223519.GB27607@odin.ac.hmc.edu>
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cc: freebsd-net@freebsd.org
cc: Donatas <donatas@lrtc.net>
Subject: Re: vlan double tagging
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On Dec 17, "Brooks Davis" wrote:

> On Fri, Dec 17, 2004 at 01:22:02PM +0200, Donatas wrote:
> > hello,
> > i'd like to ask if there's any possibility to pass double tagged vlan packets through freebsd 5.x routers?
> > and....how many level1 vlans are supported on one parent device?
> 
> I don't know what happens with double tagged vlan packets.

I think what he's asking about is whether FreeBSD prevents any of the
nasty hacks that can be accomplished by double-tagging frames, or if there
is something he can do with netgraph to prevent such badness.

Mike