From owner-freebsd-net@freebsd.org  Sat Jun 25 21:46:44 2016
Return-Path: <owner-freebsd-net@freebsd.org>
Delivered-To: freebsd-net@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id E9F77B82EC1
 for <freebsd-net@mailman.ysv.freebsd.org>;
 Sat, 25 Jun 2016 21:46:44 +0000 (UTC) (envelope-from zec@fer.hr)
Received: from mail.fer.hr (mail.fer.hr [161.53.72.233])
 (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits))
 (Client CN "mail.fer.hr", Issuer "TERENA SSL CA 3" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 70FF71CFE
 for <freebsd-net@freebsd.org>; Sat, 25 Jun 2016 21:46:43 +0000 (UTC)
 (envelope-from zec@fer.hr)
Received: from x23 (31.147.122.115) by MAIL.fer.hr (161.53.72.233) with
 Microsoft SMTP Server (TLS) id 14.3.279.2; Sat, 25 Jun 2016 23:46:34 +0200
Date: Sat, 25 Jun 2016 23:46:36 +0200
From: Marko Zec <zec@fer.hr>
To: <org.freebsd.security@io7m.com>
CC: <freebsd-net@freebsd.org>
Subject: Re: ifconfig: BRDGADD lo1: invalid argument
Message-ID: <20160625234636.2f086908@x23>
In-Reply-To: <20160625164240.7cea7587@copperhead.int.arc7.info>
References: <20160625164240.7cea7587@copperhead.int.arc7.info>
X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.29; amd64-portbld-freebsd10.1)
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
X-Originating-IP: [31.147.122.115]
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/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: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 25 Jun 2016 21:46:45 -0000

On Sat, 25 Jun 2016 16:42:40 +0000
<org.freebsd.security@io7m.com> wrote:

> Hello.
> 
> I'm trying to create a bridge interface to isolate some jails on
> private addresses. I'm on a near-pristine install of 10.3, updated to
> 10.3-p5 via freebsd-update.
> 
> The virtual interface to which the jails will be bound:
> 
> # ifconfig lo1 create
> 
> The bridge:
> 
> # ifconfig bridge create
> bridge0
> # ifconfig bridge0 addm em0
> # ifconfig bridge0 addm lo1
> ifconfig: BRDGADD lo1: Invalid argument

if_bridge(4) works only with ethernet interfaces, and lo(4) isn't such a
thing.

Assuming you are using vnet jails, take a look at if_epair(4): assign
one endpoint to the bridge, and the another one to the jail.

If you're not using vnet jails, you should simply add an alias address
to em0.

> I can find one reference to this error message online from 2007:
> 
>   https://lists.freebsd.org/pipermail/freebsd-net/2007-December/016102.html
> 
> ... but this doesn't appear to be the problem I'm having (it seems as
> though it was caused by an out-of-sync kernel and world, which I
> obviously don't have).
> 
> Any ideas how to get this working?
> 
> M
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"