From owner-freebsd-isp  Tue Apr 29 00:52:30 1997
Return-Path: <owner-isp>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id AAA03025
          for isp-outgoing; Tue, 29 Apr 1997 00:52:30 -0700 (PDT)
Received: from labs.usn.blaze.net.au (labs.usn.blaze.net.au [203.17.53.30])
          by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id AAA03020
          for <freebsd-isp@FreeBSD.ORG>; Tue, 29 Apr 1997 00:52:25 -0700 (PDT)
Received: from labs.usn.blaze.net.au (local [127.0.0.1])
	by labs.usn.blaze.net.au (8.8.5/8.8.5) with ESMTP id RAA29666;
	Tue, 29 Apr 1997 17:52:08 +1000 (EST)
Message-Id: <199704290752.RAA29666@labs.usn.blaze.net.au>
X-Mailer: exmh version 2.0gamma 1/27/96
To: "Daniel O'Callaghan" <danny@panda.hilink.com.au>
cc: John Gunkel <jgunkel@tbf.net>,
        "'freebsd-isp@freebsd.org'" <freebsd-isp@FreeBSD.ORG>
Subject: Re: virtual hosts through gateway to dummy net device 
In-reply-to: Your message of "Tue, 29 Apr 1997 13:44:34 +1000."
             <Pine.BSF.3.91.970429134130.237A-100000@panda.hilink.com.au> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Tue, 29 Apr 1997 17:52:06 +1000
From: David Nugent <davidn@labs.usn.blaze.net.au>
Sender: owner-isp@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

> > the device name is lo1, (the second loopback device: NOT 127.0.0.1)
> > is configured in a similar way to lo0 except that it has the address 
> > 192.168.2.1 whereas ed0 has the address 192.168.1.1 and works 
> > beautifully.
> 
> Why use lo1?  I use lo0 quite happily.

Yep, me too.

> # ifconfig lo0 127.0.0.1
> 
> # ifconfig lo0 192.168.1.1 netmask 0xffffffff alias
> ....
> # ifconfig lo0 192.168.1.254 netmask 0xffffffff alias
> 
> # route add 192.168.1.0 127.0.0.1
> 
> On other machines, add a route to 192.168.1.0/24 via your machine's 
> ethernet IP address.  Of course, if you are using subnets, adjust the 
> netmasks accordingly.

For subnets, you might run into a little difficulty. The 0xffffffff
mask is "magic" for ip aliases. Using a different netmask may
complicate the issue. It is probably necessary to establish permanant
arp entries for the aliases.

David Nugent - Unique Computing Pty Ltd - Melbourne, Australia
Voice +61-3-9791-9547  Data/BBS +61-3-9792-3507  3:632/348@fidonet
davidn@freebsd.org davidn@blaze.net.au http://www.blaze.net.au/~davidn/