In my network, I have a team of users for whom I gave a range of IPs so that they can do their own experiments. (they mainly work with PLCs in a production plant).
My problem is that sometimes they enter an IP in the wrong range and this brings my network down ! How do I prevent this ?
They need to be able to attribute an IP for their machines (that must be in the same subnet as my network), but if they enter a wrong IP (a server IP) then that server is down due to duplicate IP on the network.
Is there a way to make this resilient ? How ?