Re: IPTables - Unix script and Smoothwall

--- David Wilson <dgwilson-wUU9E3n5/[email protected]> wrote:
> "someone" has it working and used the script with
> the IPTABLES configuration
> to resolve the issue along with a minor modification
> to the game config
> itself.
> 
> Basically each player on the internal LAN is
> allocated a specific port
> number. Thus now I know that 192.168.10.200 will
> play on port 16200
> 
> What I don't understand is what the script is trying
> to do when it executes:
>    iptables -t nat -A PREROUTING -p udp -d $EXT_IP
> --dport $PORT_II -j DNAT
> --to-destination $HOST:$PORT_II
>    iptables -t nat -A POSTROUTING -p udp -s $HOST
> --sport $PORT_II -j SNAT
> --to-source $EXT_IP:$PORT_II

Have a look at
http://martybugs.net/smoothwall/iptables.cgi
It doesn't specificly cover what you are asking about
(at least I don't think it does), but it does give
good examples of the correct methods of adding
IPTables scripts to smoothwall.


samuel

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