iptables -t filter -I FORWARD -p tcp -s 192.168.4.4 --dport 20000 -j DROP
iptables -t filter -I FORWARD -p tcp -s 192.168.4.4 --sport 20000 -j DROP
iptables -t filter -I FORWARD -p udp -s 192.168.4.4 --dport 20000 -j DROP
iptables -t filter -I FORWARD -p udp -s 192.168.4.4 --sport 20000 -j DROP
iptables -t filter -I FORWARD -p tcp -d 192.168.4.4 --dport 20000 -j DROP
iptables -t filter -I FORWARD -p tcp -d 192.168.4.4 --sport 20000 -j DROP
iptables -t filter -I FORWARD -p udp -d 192.168.4.4 --dport 20000 -j DROP
iptables -t filter -I FORWARD -p udp -d 192.168.4.4 --sport 20000 -j DROP
.............................INPUT
.............................OUTPUT
jaki port, od, do, tcp, udp ?
nie piszesz dokladnie
