If I display the rules, I can't see any forwarding rules in the list, which tells me that the forwarding rules that I try to implement are simply ignored by iptables:
iptables -v -L
iptables defaults to listing the filter table. If you want to list nat rules, you must specify the nat table:
iptables -t nat -v -L
-- Philip Craig - philipc@xxxxxxxxxxxx - http://www.SnapGear.com SnapGear - Custom Embedded Solutions and Security Appliances