ip route add blackhole 170.109.190.0/23
ip route add blackhole 170.109.16.0/24
ip route add blackhole 170.109.212.0/22
ip route add blackhole 170.109.232.0/24
ip route add blackhole 170.109.216.0/21
ip route add blackhole 170.109.14.0/24
ip route add blackhole 170.109.180.0/24
ip route add blackhole 170.109.15.0/24
ip route add blackhole 170.109.248.0/21