ip route add blackhole 103.49.252.0/24
ip route add blackhole 2400:8bc0::/32
ip route add blackhole 103.211.39.0/24
ip route add blackhole 103.49.253.0/24
ip route add blackhole 103.211.37.0/24
ip route add blackhole 103.211.38.0/24
ip route add blackhole 103.211.36.0/24