i have some routes on my router connected to Internet and i have multiple route to the inside of my network
for each subnet routed, i have the ip route line and 2 more routes to Null0. It's public IP and in the example i used private IP.
Can someone please explain me for what we have this 2 routes to Null0 and do i really need them ?
ip route 172.16.2.0 255.255.255.0 192.168.1.1
ip route 172.16.2.0 255.255.255.255 Null0
ip route 172.16.2.255 255.255.255.255 Null0