[44net] Port Forwarding

Hello, As someone new to the intricacies of port forwarding I have been puzzled why I cannot maintain a connection when I have the entry shown below for port 7300 active yet connections via port 6300 and 8000 work as expected. $IPTABLES -A FORWARD -d 44.131.8.0/27 -p tcp -m tcp --dport 6300:6310 -j ACCEPT $IPTABLES -A FORWARD -d 44.131.8.0/27 -p tcp -m tcp --dport 7300:7310 -j ACCEPT $IPTABLES -A FORWARD -d 44.131.8.0/27 -p tcp -m tcp --dport 8000:8011 -j ACCEPT $IPTABLES -t nat -A PREROUTING -p tcp --dport 6300 -j DNAT --to-destination 44.131.8.16:6300 #$IPTABLES -t nat -A PREROUTING -p tcp --dport 7300 -j DNAT --to-destination 44.131.8.16:7300 $IPTABLES -t nat -A PREROUTING -p tcp --dport 8000 -j DNAT --to-destination 44.131.8.16:8000 Placing a [ # ] as shown allows the connections. Regards, Ian..