From owner-freebsd-questions@FreeBSD.ORG  Sun Dec 30 03:28:46 2012
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 387C48F6
 for <freebsd-questions@freebsd.org>; Sun, 30 Dec 2012 03:28:46 +0000 (UTC)
 (envelope-from FreeBSD@shaneware.biz)
Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net
 [IPv6:2001:44b8:8060:ff02:300:1:6:6])
 by mx1.freebsd.org (Postfix) with ESMTP id 8DA5F8FC14
 for <freebsd-questions@freebsd.org>; Sun, 30 Dec 2012 03:28:45 +0000 (UTC)
Received: from ppp247-71.static.internode.on.net (HELO leader.local)
 ([203.122.247.71])
 by ipmail06.adl6.internode.on.net with ESMTP; 30 Dec 2012 13:58:36 +1030
Message-ID: <50DFB4C0.7080701@ShaneWare.Biz>
Date: Sun, 30 Dec 2012 13:58:00 +1030
From: Shane Ambler <FreeBSD@ShaneWare.Biz>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:17.0) Gecko/17.0 Thunderbird/17.0
MIME-Version: 1.0
To: Fbsd8 <fbsd8@a1poweruser.com>
Subject: Re: static ip address and ifconfig
References: "\"<50DF24BC.20507@a1poweruser.com>"
 <20121229124207.110dca60@europa>" <50DF30EA.1030408@a1poweruser.com>
 <20121229191604.cff1a883.freebsd@edvax.de> <50DF3A61.6040307@a1poweruser.com>
 <29b73b32ef10a5f868eb1e3bbc6a0a95@dweimer.net>
 <50DF5D99.9020206@a1poweruser.com>
In-Reply-To: <50DF5D99.9020206@a1poweruser.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-questions@freebsd.org
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 30 Dec 2012 03:28:46 -0000

On 30/12/2012 07:46, Fbsd8 wrote:
> The rc.config statement ifconfig_xl0="DHCP" on that PC would function as
> exspected?

DHCP doesn't actually mean that the address will be dynamic - DHCP can 
give you the same ip address every time it is requested. It simply moves 
the details of configuration from you to your ISP.

You probably want to talk with your ISP about this - I would expect you 
to get one IP assigned to your connection that is expected to be your 
routers IP address and then it is up to you to take care of routing your 
subnet to your internal network. You may assign all address to the one 
machine but only one address will get the traffic to be routed to the 
other addresses.