ipset -N myBlackhole-4 hash:net family inet
ipset -N myBlackhole-6 hash:net family inet6
ipset -A myBlackhole-4 46.21.64.0/24
ipset -A myBlackhole-4 46.21.67.0/24
ipset -A myBlackhole-4 46.21.75.0/24
ipset -A myBlackhole-4 88.82.84.0/24
ipset -A myBlackhole-4 46.21.65.0/24
ipset -A myBlackhole-4 46.21.66.0/24
ipset -A myBlackhole-4 88.82.85.0/24
iptables -A INPUT -m set --match-set myBlackhole-4 src -j DROP
ip6tables -A INPUT -m set --match-set myBlackhole-6 src -j DROP