[plug] Port forwarding with Iptables

[Nigel Duff]

Hi all,

I am trying to forward edonkey ports from my firewall to a machine on my
internal network. I have played with different configurations but can't
get it to work. I have the following policy under a 2.4.19 kernal.

iptables -t nat -A PREROUTING  -p tcp -s 0/0 -d 0/0 --destination-port
4660:4670 -j DNAT --to-destination 192.168.1.2:4660-4670

With a similar entry for UDP. 

Can anyone point out me in the direction of my obvious mistake?

Thanks 

Nigel