ip route add blackhole 198.47.21.0/24
ip route add blackhole 192.94.92.0/24
ip route add blackhole 198.47.22.0/24
ip route add blackhole 198.47.20.0/24
ip route add blackhole 192.91.66.0/24
ip route add blackhole 198.47.27.0/24
ip route add blackhole 198.47.28.0/24
ip route add blackhole 198.47.26.0/24
ip route add blackhole 198.47.29.0/24
ip route add blackhole 192.91.75.0/24
ip route add blackhole 198.47.23.0/24
ip route add blackhole 198.47.19.0/24
ip route add blackhole 192.91.101.0/24