Why don I have to enter an IP address for a nameserver thats not in a .edu domain?
We are only authoritative for nameservers in the .edu domain. Therefore we only collect IP addresses for nameservers that end in .edu. Nameservers that don’t end in .edu are registered in their second level domain through the registrar of that domain. (e.g., Nameserver ns.someisp.net is registered by someisp.net at the registrar for someisp.net) If we were to collect IP addresses for non .edu nameservers, it would be for display purposes only. Since there is no overall methodology for keeping information in synch between registrars, we have chosen not to collect or display data that is not authoritative and may be incorrect if not kept up to date.