ip route add blackhole 203.222.196.0/24
ip route add blackhole 203.222.192.0/20
ip route add blackhole 203.222.194.0/24
ip route add blackhole 203.222.198.0/24
ip route add blackhole 203.222.192.0/24
ip route add blackhole 203.222.192.0/22
ip route add blackhole 203.222.197.0/24
ip route add blackhole 203.222.199.0/24
ip route add blackhole 203.222.196.0/22
ip route add blackhole 203.222.193.0/24
ip route add blackhole 203.222.195.0/24