1 iptables -t filter -N abcdefghijab
2 iptables -t filter -N interface_tap0
3 iptables -t filter -N abcdefghij
4 iptables -t filter -A abcdefghijab -p udp --dport domain -j ACCEPT
5 iptables -t filter -A INPUT -p udp -j abcdefghijab
6 iptables -t filter -A INPUT -p udp -j abcdefghij
7 iptables -t filter -A INPUT -p udp -j interface_tap0
8 iptables -t filter -A interface_tap0 -p udp --dport domain -j ACCEPT
9 iptables -t filter -A abcdefghij -p udp --dport domain -j ACCEPT