ip route add blackhole 131.161.136.0/22
ip route add blackhole 143.255.192.0/22
ip route add blackhole 143.255.194.0/23
ip route add blackhole 143.255.195.0/24
ip route add blackhole 143.255.192.0/24
ip route add blackhole 131.161.136.0/23
ip route add blackhole 131.161.138.0/24
ip route add blackhole 2804:1d84::/32
ip route add blackhole 143.255.192.0/23
ip route add blackhole 131.161.138.0/23
ip route add blackhole 131.161.139.0/24