ipset -N myBlackhole-4 hash:net family inet
ipset -N myBlackhole-6 hash:net family inet6
ipset -A myBlackhole-4 202.127.171.0/24
ipset -A myBlackhole-4 202.127.172.0/24
ipset -A myBlackhole-4 202.127.169.0/24
ipset -A myBlackhole-4 202.127.173.0/24
ipset -A myBlackhole-4 202.127.168.0/24
ipset -A myBlackhole-4 202.127.168.0/21
ipset -A myBlackhole-4 202.127.170.0/24
ipset -A myBlackhole-4 202.127.174.0/24
iptables -A INPUT -m set --match-set myBlackhole-4 src -j DROP
ip6tables -A INPUT -m set --match-set myBlackhole-6 src -j DROP