Port Forwarding Problem
Samuel Díaz García
samueldg at arcoscom.com
Fri Apr 15 10:40:39 CEST 2005
Without having a look into your scripts, I think you need:
1) Allow INPUT into filter table to the port.
2) Allow FORDWARD into filter table to the redirected conection.
Julian Labuschagne writes:
> Hi everyone I'm a bit new to iptables so please bear with me on this one
> I wrote a small firewall that basicaly nats users through my gateway
> machine only allowing certain hosts on my network Web DNS and Mail access.
> This section works fine.
> But I also want to port forward any connections from outside to port 800
> to a host running inside my LAN.
> I added a rule in the PREROUTING table to do this.
> But it seems that no connection gets forwarded.
> If I set my default policies to ACCEPT and add the PREROUTING rule it
> actualy does the port forwarding correctly.
> I attached a copy of the firewall I wrote with this message.
> Please can someone have a look through it for me cause I'm sure I'm just
> missing something.
> Kind Regards Julian.
Samuel D�az Garc�a
ArcosCom Wireless, S.L.L.
mailto:samueldg at arcoscom.com
m�vil: 651 93 72 48
tlfn.: 956 70 13 15
fax: 956 70 34 83
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