ip route add blackhole 133.247.235.0/24
ip route add blackhole 133.247.80.0/21
ip route add blackhole 210.166.192.0/20
ip route add blackhole 133.247.88.0/23
ip route add blackhole 202.233.0.0/18
ip route add blackhole 202.73.80.0/20
ip route add blackhole 202.73.64.0/20
ip route add blackhole 2001:338::/32