ipset -N myBlackhole-4 hash:net family inet
ipset -N myBlackhole-6 hash:net family inet6
ipset -A myBlackhole-6 2801:80:a80::/44
ipset -A myBlackhole-4 200.237.192.0/18
ipset -A myBlackhole-6 2801:80:a80::/45
ipset -A myBlackhole-4 200.237.192.0/20
ipset -A myBlackhole-6 2801:80:a88::/45
iptables -A INPUT -m set --match-set myBlackhole-4 src -j DROP
ip6tables -A INPUT -m set --match-set myBlackhole-6 src -j DROP