1 iptables -t filter -A INPUT -m iprange --src-range 10.0.0.0-10.1.0.0 -j ACCEPT
2 iptables -t filter -A INPUT -m iprange ! --dst-range 10.2.0.0-10.3.0.0 -j ACCEPT
3 iptables -t filter -A INPUT -m iprange --dst-range 10.2.0.0-10.3.0.0 -j DROP
4 iptables -t filter -A INPUT -m iprange --dst-range 172.16.0.0-172.16.15.0 -j DROP