...
On the IdP (or Identity Provider) Realms page, you will configure a globally unique realm for your organization. This realm usually correspond corresponds to the namespace of your website address , but are is not required to do so. Once you acknowledge and click 'Add', the realm is ready for use and no longer needs to be approved. On this same page, you will configure the server IP addresses or DNS names for the RADIUS servers that will receive authentication requests back to your organization from your users, as well as a private secret.
Hotspot Servers
...
Detailed information on completing each page can be found in the Support Organization Administrator User Guide.
Adding new eduroam Administrators
...