1:INPUT,FORWARD,OUTPUT 2-p tcp -j ACCEPT;=;OK 3! -p udp -j ACCEPT;=;OK 4-j DROP;=;OK 5-j ACCEPT;=;OK 6-j RETURN;=;OK 7! -p 0 -j ACCEPT;=;FAIL 8:FORWARD 9-i + -p tcp;-p tcp;OK 10