ip route add blackhole 157.119.48.0/24
ip route add blackhole 103.231.231.0/24
ip route add blackhole 157.119.49.0/24
ip route add blackhole 157.119.50.0/24
ip route add blackhole 103.231.228.0/24
ip route add blackhole 157.119.51.0/24
ip route add blackhole 103.231.230.0/24