ip route add blackhole 208.108.138.0/24
ip route add blackhole 208.108.136.0/24
ip route add blackhole 208.108.137.0/24
ip route add blackhole 208.108.139.0/24
ip route add blackhole 208.108.136.0/21
ip route add blackhole 208.108.142.0/24
ip route add blackhole 208.108.141.0/24
ip route add blackhole 208.108.140.0/24
ip route add blackhole 208.108.143.0/24