ip route add blackhole 202.87.237.0/24
ip route add blackhole 202.143.8.0/21
ip route add blackhole 202.87.234.0/24
ip route add blackhole 202.87.235.0/24
ip route add blackhole 202.87.224.0/20
ip route add blackhole 202.87.236.0/24
ip route add blackhole 202.87.233.0/24
ip route add blackhole 202.87.232.0/24