From owner-freebsd-questions  Wed Jun  9 19:53:28 1999
Delivered-To: freebsd-questions@freebsd.org
Received: from cc942873-a.ewndsr1.nj.home.com (cc942873-a.ewndsr1.nj.home.com [24.2.89.207])
	by hub.freebsd.org (Postfix) with ESMTP id E4C6014BF6
	for <freebsd-questions@FreeBSD.ORG>; Wed,  9 Jun 1999 19:53:26 -0700 (PDT)
	(envelope-from cjc@cc942873-a.ewndsr1.nj.home.com)
Received: (from cjc@localhost)
	by cc942873-a.ewndsr1.nj.home.com (8.9.3/8.8.8) id WAA08656;
	Wed, 9 Jun 1999 22:54:43 -0400 (EDT)
	(envelope-from cjc)
From: "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com>
Message-Id: <199906100254.WAA08656@cc942873-a.ewndsr1.nj.home.com>
Subject: Re: Firewall With 2 Gateways\
In-Reply-To: <000f01beb2df$7027cbe0$1e01a8c0@altronics.com> from Adam Breaux at "Jun 9, 99 09:20:33 pm"
To: adam@idomains.net (Adam Breaux)
Date: Wed, 9 Jun 1999 22:54:43 -0400 (EDT)
Cc: freebsd-questions@FreeBSD.ORG
Reply-To: cjclark@home.com
X-Mailer: ELM [version 2.4ME+ PL40 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

Adam Breaux wrote,
> I need to setup a machine with the ability to switch between 2 different gateways automatically.
> 
> The system would need 3 nics ( I assume ).
> 
> LAN Interface: 
>     ip: 192.168.1.1 
>     nm: 255.255.255.0
> 
> Cable Interface: 
>     ip: 24.x.x.x 
>     nm: 255.255.255.0
>     gw: 24.x.x.254

@Home service, per chance?

> Frame Interface:
>     ip: 205.x.x.x
>     nm: 255.255.255.224
>     gw: 205.x.x.161
> 
> Some sort of script that pings a remote host...cable provider's router maybe...
> 
> When it loses connect, change default gateway to frame.
> When cable comes back up, change default gateway to cable.
> 
> Any ideas on this? I have a pretty good idea of what is needed but a good how-to is 
> certainly in order. Thanks in advance.

This kind of job is one of the things router daemons were created
for. Have a look at the documentation for 'routed' or 'gated' for a
start. Doing this as a script is not recommended when there are
powerful tools like that built for jobs just like this.
-- 
Crist J. Clark                           cjclark@home.com


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message