ipset -N myBlackhole-4 hash:net family inet
ipset -N myBlackhole-6 hash:net family inet6
ipset -A myBlackhole-4 131.100.80.0/23
ipset -A myBlackhole-6 2804:1bf4::/32
ipset -A myBlackhole-4 131.100.82.0/24
ipset -A myBlackhole-4 131.100.80.0/24
ipset -A myBlackhole-4 131.100.83.0/24
ipset -A myBlackhole-4 131.100.81.0/24
ipset -A myBlackhole-4 131.100.80.0/22
iptables -A INPUT -m set --match-set myBlackhole-4 src -j DROP
ip6tables -A INPUT -m set --match-set myBlackhole-6 src -j DROP