Re: ipfw simpel fwd regel

From: Thomas L. Kjeldsen (none@tlk--mayi.dk.lh.bsd-dk.dk)
Date: Tue 25 Nov 2003 - 23:26:07 CET

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Date: Tue, 25 Nov 2003 23:26:07 +0100
From: "Thomas L. Kjeldsen" <none@tlk--mayi.dk.lh.bsd-dk.dk>
To: bsd-dk@bsd-dk.dk
Subject: Re: ipfw simpel fwd regel

Hep

madsen999@mailme.dk wrote:
>
> inet 80.196.100.200
> | fxp0
> router (freebsd 5.1)
> | fxp1
> mailserver (192.168.1.130)

Jeg har gode erfaringer med at foelge haandbogens afsnit om emnet:
http://www.freebsd.org/handbook/network-natd.html

> Jeg ønsker blot at lege med en lille mailserver hjemme på en ADSL linie.
> Jeg har selv navneservere og har peget mx records på min hjemmeip.
>
> Min FreeBSD router har firewall default to open.
>
> Med iptables ville det se nogenlunde sådan her ud:
>
> iptables -A FORWARD -j ACCEPT -p tcp --dport 25
> iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 25 -j DNAT --to
> 192.168.1.130:25

Se haandbogen 19.13.4, Port Redirection.

vh Thomas

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