ip route add blackhole 177.87.253.0/24
ip route add blackhole 177.87.254.0/24
ip route add blackhole 177.87.255.0/24
ip route add blackhole 177.87.252.0/23
ip route add blackhole 177.87.252.0/22
ip route add blackhole 2804:1574::/32
ip route add blackhole 177.87.252.0/24
ip route add blackhole 177.87.254.0/23