Redirect or Forward Ports using Iptables Port Redirection: iptables -t nat -A PREROUTING -i -p tcp --dport -j REDIRECT --to-port or iptables -t nat -I PREROUTING --src ip/mask --dst -p tcp --dport 80 -j Redirect --to-port

Port Forwarding: iptables -A PREROUTING -t nat -i -p tcp --dport 80 -j