Date: Tue, 12 Dec 2006 11:00:28 +0200 From: Nikos Vassiliadis <nvass@teledomenet.gr> To: freebsd-questions@freebsd.org Cc: "Bret J. Esquivel" <besquivel@immense.net> Subject: Re: Routing Question Message-ID: <200612121100.28716.nvass@teledomenet.gr> In-Reply-To: <014301c71dc2$1e3d1910$5ab74b30$@net> References: <014301c71dc2$1e3d1910$5ab74b30$@net>
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On Tuesday 12 December 2006 09:49, Bret J. Esquivel wrote:
> Hi,
>
>
>
> I have a cable modem at my office with a /28 allocated. I have a FreeBSD 6.1
> firewall/router in between the cable modem and the switch to other nodes. My
> question is how could I add static routes to say my web server having an
> external IP address but still going through the firewall box? NAT is not an
> option.
>
>
>
> INET (70.164.48.225/28) -> [xl0] Firewall (70.164.48.226) [xl1] -> [xl0] Web
> server (70.164.48.227)
You can bridge xl0 and xl1. Then you'll use one address e.g. 70.164.48.225/28
on you xl0 and that will be reachable from your lan too. xl1 doesn't have to
have an IP address. Check man if_bridge.
But is this the topology? in many cases there is a PPP interface
which connects you to the world, a WAN interface. And there is a
network routed through this. Something like this:
W A N L A N
(a.b.c.d/32) <-> (a.b.c.e/32 router d.e.f.a/28) <-> (d.e.f.b/28 other boxes)
Hope this help, Nikos
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