Instructions: Eduroam for macOS
Download the installation profile for macOS from cat.eduroam.org.
In Downloads, click at the downloaded profile
While installing, you are changing the system settings, so you might be asked to enter the administrator password.
Installation is finished. If your login data is correct and you are within the eduroam network reach, you will be connected in a while.
Using the eduroam network is not controlled by a firewall in any way. Hence, it is very important to secure your computer with your own firewall.