ipset -N myBlackhole-4 hash:net family inet
ipset -N myBlackhole-6 hash:net family inet6
ipset -A myBlackhole-4 199.71.244.0/22
ipset -A myBlackhole-4 199.71.247.0/24
ipset -A myBlackhole-4 199.71.248.0/24
ipset -A myBlackhole-4 199.71.249.0/24
ipset -A myBlackhole-4 199.71.250.0/24
ipset -A myBlackhole-4 199.71.245.0/24
ipset -A myBlackhole-4 199.71.244.0/24
ipset -A myBlackhole-4 199.71.246.0/24
ipset -A myBlackhole-4 199.71.251.0/24
ipset -A myBlackhole-4 199.71.248.0/22
iptables -A INPUT -m set --match-set myBlackhole-4 src -j DROP
ip6tables -A INPUT -m set --match-set myBlackhole-6 src -j DROP