ip route add blackhole 103.174.158.0/24
ip route add blackhole 103.181.141.0/24
ip route add blackhole 103.169.157.0/24
ip route add blackhole 103.179.39.0/24
ip route add blackhole 103.171.8.0/24
ip route add blackhole 103.179.38.0/24
ip route add blackhole 103.206.134.0/24