From owner-freebsd-questions  Fri Nov 17 14:31:49 2000
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From: "Eirik Apeland" <eapeland@c2i.net>
To: "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>
Date: Fri, 17 Nov 2000 23:34:09 +0100
Reply-To: "Eirik Apeland" <eapeland@c2i.net>
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Subject: ipfw question
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Hi.

I'm running a "simple" firewall with the rc.firewall script, and have
added a few lines of my own to it.

I have a dailup connection to my ISP, so I can't use a "real"
IP for my ISDN card.

Anyone know how to implement the IP I'm getting from my ISP
into my ipfw rules? 

ex.

        # set these to your outside interface network and netmask and ip
        oif="isp0"
        onet="0.0.0.0"
        omask="255.255.255.0"
        oip="0.0.0.1"

        # set these to your inside interface network and netmask and ip
        iif="xl0"
        inet="10.0.0.0"
        imask="255.255.255.0"
        iip="10.0.0.10"


        # Stop spoofing
        ${fwcmd} add deny all from ${onet}:${omask} to any in via ${iif}

This rule will be all wrong as it is today.

Hope you understand what I'm after here :)

Regards
Eirik





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