ip route add blackhole 91.211.252.0/24
ip route add blackhole 91.211.254.0/23
ip route add blackhole 91.211.252.0/22
ip route add blackhole 91.211.253.0/24
ip route add blackhole 193.23.51.0/24
ip route add blackhole 91.211.254.0/24
ip route add blackhole 91.211.255.0/24