ip route add blackhole 168.90.250.0/23
ip route add blackhole 168.90.248.0/24
ip route add blackhole 2804:2db4::/32
ip route add blackhole 168.90.250.0/24
ip route add blackhole 168.90.251.0/24
ip route add blackhole 168.90.248.0/23
ip route add blackhole 168.90.249.0/24
ip route add blackhole 168.90.248.0/22