ip route add blackhole 103.13.120.0/24
ip route add blackhole 103.13.120.0/23
ip route add blackhole 203.142.6.0/23
ip route add blackhole 143.249.155.0/24
ip route add blackhole 203.142.7.0/24
ip route add blackhole 103.13.121.0/24
ip route add blackhole 143.86.241.0/24