ip route add blackhole 103.139.144.0/24
ip route add blackhole 103.137.67.0/24
ip route add blackhole 103.13.193.0/24
ip route add blackhole 103.122.74.0/24
ip route add blackhole 103.122.75.0/24
ip route add blackhole 103.13.192.0/24
ip route add blackhole 103.81.104.0/24
ip route add blackhole 103.81.105.0/24