The eduroam configuration can be done automatically (if the device supports it) or manually. We recommend users to form automatic settings. By security and performance is the network wifi that has to use .
udcportal not need any configuration (are required to open a browser and enter user credentials to work). We recommend users to use eduroam: it's safer and has a higher connection speed than udcportal.
You can be used it to configure eduroam on the wireless devive.
See requirements for connecting networks without edges UDC.