From owner-freebsd-net@FreeBSD.ORG  Sat Jan 14 19:57:41 2006
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
X-Original-To: freebsd-net@freebsd.org
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 09E0116A41F
	for <freebsd-net@freebsd.org>; Sat, 14 Jan 2006 19:57:41 +0000 (GMT)
	(envelope-from leimy2k@gmail.com)
Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.192])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 95BAC43D46
	for <freebsd-net@freebsd.org>; Sat, 14 Jan 2006 19:57:40 +0000 (GMT)
	(envelope-from leimy2k@gmail.com)
Received: by zproxy.gmail.com with SMTP id 9so857236nzo
	for <freebsd-net@freebsd.org>; Sat, 14 Jan 2006 11:57:40 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:to:subject:mime-version:content-type;
	b=Q+c3sBlyQLvW/xKoearlav2Dy5WY4sHqrMUf4OaUSu0OzeOvDGmkEOG3L7lI7sLX1dO749YKy7LGVMguXsYmm0P2lVqbBssS9juXv9NLFJ0ZhVE3SCrX/Vwv5NNCK5LQXKqfay7uvyml559kH9ojaS2pzXktaE+qsZ5YnQUjm3k=
Received: by 10.36.43.12 with SMTP id q12mr3499108nzq;
	Sat, 14 Jan 2006 11:57:40 -0800 (PST)
Received: by 10.36.46.3 with HTTP; Sat, 14 Jan 2006 11:57:40 -0800 (PST)
Message-ID: <3e1162e60601141157k2d89204eg379d39edeb13af0b@mail.gmail.com>
Date: Sat, 14 Jan 2006 11:57:40 -0800
From: David Leimbach <leimy2k@gmail.com>
To: freebsd-net@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Subject: tap interfaces on FreeBSD 6.0
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 14 Jan 2006 19:57:41 -0000

On a newly installed FBSD 6.0 system I did the following to try to create a
tap0 interface.

opty1# cat /dev/null > /dev/tap0
/dev/tap0: Operation not supported

I repeated the above about 5 times just to see if it changed, got the same
result.

Then
opty1# ifconfig tap0 create
ifconfig: SIOCIFCREATE: Invalid argument

then I did another:
opty1# cat /dev/null > /dev/tap0

and got
tap0: Ethernet address: 00:bd:bb:d2:16:00

and now I have tap0.

What's the correct way to create this thing the first time on devfs?

It seems like setting this up might be tricky for a qemu configuration
script.

I had been using the "vde" port to set up qemu in the past but now the qemu
port has a new version that doesn't support the syntax of the older "vde"
port, and I'm not up to moving vde to the latest version for FreeBSD by
myself [it's chock full of linuxism which is probbaly fine since it's from
UML I think]

Any advice?  I'd like to expose qemu machines on my local network for ssh
access into them.

Dave