eduroam SP

Basic deployment considerations for wireless LANs

An eduroam wireless network is a wireless network. This sounds trivial, but it is important to keep in mind that

This section provides general advice regarding eduroam deployment on a wireless LAN. It does not include information on general WLAN network planning and setup, it only covers topics essential to deploying eduroam on an already setup wireless LAN. 

Obligations of eduroam SPs

The basic requirement for and eduroam SP is that the underlaying WLAN must be able to support IEEE 802.1X authentications, WPA2/AES support and, if you also want other networks, multi-SSID support. This is usually the case with today's network equipment. If you want to distinguish traffic beloning to the eduroam network from other traffic, you also need to deploy VLANs in your network.

For eduroam, you need to add information of the RADIUS server that you will be using to your WLAN controller (or stand-alone access point). As a pure eduroam SP, the RADIUS server in question is likely the one of your national federation. If you are both an eduroam IdP and an eduroam SP, the RADIUS is your own RADIUS server. You will need to add the IP address of the RADIUS server as well as the shared secret, which is basically a string of characters that has been agreed on by you and the operator of the RADIUS server. You may also have to add information about the ports to use, which are 1812 for authentication and 1813 for accounting.

Once you have added the RADIUS server you need to create the eduroam SSID. This must be a network with 802.1X and WPA2/AES enabled and the SSID must be eduroam and this SSID needs to be broadcasted. For this eduroam network, you still need to define that the RADIUS server defined previously need to be used. 

In this wiki it is not possible to keep up-to-date guidelines on how to set up eduroam on all wireless equipment on the market. The best way to set up eduroam on your network is to do the initial setup according to the manufacturer's guidelines and thereafter, check the same guidelines on how to apply the eduroam-spesific settings mentioned above. However, a few guidelines are available through the links below

In order to check which ports should be open for the eduroam end users, please check out the eduroam Policy Service Definition document, particularly Chapter 6.3.3.

Set up of networking equipment in the network core

Since an eduroam hotspot always uses the RADIUS protocol to connect to a RADIUS authentication server, your network setup must allow this RADIUS communication. This includes opening firewalls for traffic from the WLAN equipment (AP/Controller) to UDP port 1812 (do not confuse this with TCP!). The RADIUS protocol can easily create UDP fragments, and will not function fully without UDP fragmentation support. Be sure to check your equipment whether forwarding of UDP fragments is supported and allowed. For accounting the UDP port 1813 also needs to be opened.

If you deploy your own RADIUS server for eduroam SP purposes (see below), also make sure that its own uplinks to your National Roaming Operator are open in the same way.

Set up of eduroam SP RADIUS servers