ip route add blackhole 142.51.116.0/22
ip route add blackhole 192.26.235.0/24
ip route add blackhole 142.51.64.0/18
ip route add blackhole 142.51.120.0/22
ip route add blackhole 142.51.127.0/24
ip route add blackhole 142.51.128.0/18
ip route add blackhole 142.51.0.0/18