ip route add blackhole 114.198.234.0/24
ip route add blackhole 114.198.239.0/24
ip route add blackhole 114.198.233.0/24
ip route add blackhole 114.198.238.0/24
ip route add blackhole 114.198.235.0/24
ip route add blackhole 114.198.236.0/24
ip route add blackhole 114.198.237.0/24