ip route add blackhole 108.161.74.0/24
ip route add blackhole 108.161.73.0/24
ip route add blackhole 108.161.72.0/24
ip route add blackhole 108.161.76.0/24
ip route add blackhole 108.161.79.0/24
ip route add blackhole 108.161.78.0/24
ip route add blackhole 108.161.77.0/24