Linux Networking
Routing
null route (blackhole)
ip route add blackhole 10.1.2.199
ip route add blackhole 10.1.2.199/24
ip route
ip route del 10.1.2.199
null route an ip list
for string in $(cat ips.txt); do ip route add blackhole $string; done
ip route add blackhole 10.1.2.199
ip route add blackhole 10.1.2.199/24
ip route
ip route del 10.1.2.199
null route an ip list
for string in $(cat ips.txt); do ip route add blackhole $string; done