ip route add blackhole 163.249.100.0/22
ip route add blackhole 163.249.160.0/21
ip route add blackhole 163.249.128.0/19
ip route add blackhole 163.249.168.0/22
ip route add blackhole 163.249.104.0/21
ip route add blackhole 163.249.112.0/20
ip route add blackhole 163.249.8.0/23