ip route add blackhole 2804:9b4::/32
ip route add blackhole 177.11.64.0/22
ip route add blackhole 177.11.64.0/21
ip route add blackhole 2804:9b4:8000::/33
ip route add blackhole 177.11.68.0/22
ip route add blackhole 2804:9b4::/33
ip route add blackhole 177.11.68.0/23