Help with Iptables Tutorial and Port Forwarding/NAT

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Hi, I am having a hard time trying to figure out why
any packets I am trying to forward to my internal
network are being dropped. I am using the
'rc.firewall' file that is included in the 'Iptables
Tutorial'
http://iptables-tutorial.frozentux.net/iptables-tutorial.html
 

Everything is fine, except I can't get any packets to
forward to an internal webserver here. I am using this
line: 


/sbin/iptables -t nat -A PREROUTING --dst 1.2.3.4 -p
tcp --dport 80 -j DNAT --to-destination 10.0.0.3:80

When I look at the packet count doing iptables -t nat
-L -v I can see the packet count go up on that rule,
every time i try and connect to port 80. But in my
logs, I see that it matched a logging rule, and shows
up as 'IPT FORWARD packet died", so i guess it is
ending prematurely in the forward chain? Any help
would be greatly appreciated!!! THANKS!!!


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