ip route add blackhole 202.126.122.0/24
ip route add blackhole 202.126.121.0/24
ip route add blackhole 202.126.123.0/24
ip route add blackhole 202.126.120.0/21
ip route add blackhole 202.126.126.0/24
ip route add blackhole 202.126.127.0/24
ip route add blackhole 202.126.120.0/24
ip route add blackhole 202.126.124.0/24
ip route add blackhole 202.126.125.0/24