firewall help

[Piero]

> -----Original Message-----
> From: fedora-list-bounces at redhat.com [mailto:fedora-list-
> bounces at redhat.com] On Behalf Of freejay
> Sent: Saturday, May 28, 2005 6:14 PM
> To: Fedora Core
> Subject: firewall help
> 
> Hi, currently our network (2.2.2.x/16) is connected to a gateway router
> (with an IP address of 2.2.2.1) and we do not have any internet
> connection.
> My boss told me that our network would be connecting to the internet soon,
> so I better build a firewall for this. The firewall we came up with is a 3
> interfaced linux box. One interface is connected to the internet, another
> to
> our network, and the last one to the gateway router. Here's the problem:
> 1.) the firewall should be transparent enough between the gateway and our
> network that if we need to disconnect from the firewall we could connect
> directly to the gateway router.
> 2.) Our current settings on both gateway and network is retained even if
> connected to the firewall. (e.g. the gateway of our PC's are still
> 2.2.2.1)
> Hope somebody can help.

Hi,
http://www.smoothwall.org can help you.
I use it with 3 interfaces: an internet interface, a DMZ interface and a LAN
interface (this one connected with backbone switch).

Piero