Creating a fake nameserver
I need to create private nameservers, but I don't want to use my real IP address when creating them. I want to use just some generic non-functional IP address. Will the process allow me to just enter something like 123.123.1.1 and actually create the nameservers without any error messages?No, I haven't been sniffing any glue today.

The reason for this strange question is that I need to produce some tutorials on how to create private nameservers. And I don't want to use any real IP addresses that relate to any specific hosting company. I need to keep it as generic as possible.
So any suggestions on what IPs I should use?
Vito