ipset -N myBlackhole-4 hash:net family inet
ipset -N myBlackhole-6 hash:net family inet6
ipset -A myBlackhole-4 195.248.74.0/24
ipset -A myBlackhole-4 193.84.181.0/24
ipset -A myBlackhole-6 2a01:6b20::/34
ipset -A myBlackhole-4 195.74.73.0/24
iptables -A INPUT -m set --match-set myBlackhole-4 src -j DROP
ip6tables -A INPUT -m set --match-set myBlackhole-6 src -j DROP