ip route add blackhole 177.67.56.0/23
ip route add blackhole 2801:80:250::/48
ip route add blackhole 143.137.140.0/23
ip route add blackhole 143.137.142.0/23
ip route add blackhole 143.137.140.0/22
ip route add blackhole 177.67.58.0/23
ip route add blackhole 177.67.56.0/22