Date: Mon, 20 Nov 2000 13:46:45 -0600 From: Hamilton Hoover <hamilton@twopoint.com> To: Nick Rogness <nick@rapidnet.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@FreeBSD.ORG>, "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG> Subject: Re: dual homed gateway system running ipfw and nat. need rules help. Message-ID: <3A197FA5.95299923@twopoint.com> References: <Pine.BSF.4.21.0011201153320.68323-100000@rapidnet.com>
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>>I am running a dual homed system (2 nics) acting as a >>gateway/firewall for our office T1. The private net uses >>192.x.x.x and the public uses a 'real' address of 209.x.x.x. >>The firewall is up and seems to be working well. I used >>rc.firewall "simple" and have customized it to our needs. All >>outgoing requests appear to to originating from the public >>interface. I want to be able to do two things that I have not >>been able to figure out yet.
>>1) We keep out pop server on the private net. I need to be >>able to get the incoming mail passed to the mail server that >>has a 192.x.x.x address. I was thinking something like:
> Incoming from the outside or inside?
Incoming from the public net.
>>${fwcmd} pass tcp from any 25 to 192.x.x.x
> The POP server runs on port 110 not 25, that's SMTP.
ok. then I change that from 25 to 110? I run qmail on a linux box on my
private net.
>>Is this solid or am I opening myself up from more problems. I >>don't want to relay from outside as mail is only checked from >>inside the private side.
>If you don't want mail from the outside world or users to send >mail to the outside world, then this should work. Is the BSD >machine acting as a mail server?
um, no. I want users to be able to read and send mail normally from the
private side to the public side and, I want mail from the outside world
to pass in to the mail server that is on the private side, mail server
is not running on the gateway/firewall. I allow all outgoing traffic ie;
from private to public so I don't think 'outgoing' mail needs its own
rule? But I have not been able to get mail from the public net to get
passed to my mail server on the private net.
thanks,
Hamilton Hoover
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