IP Forwarding Using Port

IP Forwarding Using Port

#vi /etc/sysctl.conf

Change the 0 to 1 in the shown line

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

#iptables -I FORWARD -p tcp -d 172.20.1.12 --dport 8888 -j ACCEPT

#iptables -t nat -A PREROUTING -i lo -p tcp --dport 8888 -j DNAT --to-destination 172.20.1.12:8888

#iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

#service iptables reload