Hi,
Can someone explain me what is the purpose of having a permanent static route? I would appreciate to be explained it with some case scenario.
So if I put for ex. ip route 1.1.1.1 255.255.255.255 2.2.2.2 the static route will be present in the routing table as long as the next-hop (in this case 2.2.2.2) is available. When 2.2.2.2 is not available, the static route will be removed from the routing table. But if I put 1.1.1.1 255.255.255.255 2.2.2.2 permament, the static route will be present in the routing table no matter if the next-hop is reachable or not. If it's not then the traffic will be dropped, wright? If some kind of traffic needs to be dropped then I can point him to Null interface.
Can this be the case of some network that needs to be specifically pointed to certain ISP, if there is 2 ISP links? Other than that, I don't have idea why. And I'm curious.
Thanks!