Hi, > -A FORWARD -s 192.168.1.0/24 -d 192.168.10.0/24 -i eth1 -o eth1 -m > state --state NEW -j ACCEPT >-A FORWARD -s 192.168.10.0/24 -d 192.168.1.0/24 -i eth1 -o eth1 -m >state --state NEW -j ACCEPT I think you're missing forwarding of ESTABLISHED,RELATED between 192.168.1.0/24 and 192.168.10.0/24. Try to change above rules to: -A FORWARD -s 192.168.1.0/24 -d 192.168.10.0/24 -i eth1 -o eth1 -j ACCEPT -A FORWARD -s 192.168.10.0/24 -d 192.168.1.0/24 -i eth1 -o eth1 -j ACCEPT Best regards, Marek -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html