## Forward traffic from 62.97.200.0/24 iptables -A FORWARD -s 62.97.200.0/24 -o eth2 -j ACCEPT ## Block all in and open for certain ports iptables -A FORWARD -i eth2 -o eth1 -p TCP --dport 6112 -j ACCEPT iptables -A FORWARD -i eth2 -o eth1 -p TCP -j REJECT ## Block all out and open for certain ports iptables -A FORWARD -i eth1 -o eth2 -p TCP --dport 6112 -j ACCEPT iptables -A FORWARD -i eth1 -o eth2 -p TCP -j REJECT