There is a recently formed netplus-eduroam-admins listserv created by the
eduroam-US organization to discuss technical problems like this, and it
recently has been having a very similar conversation about required RADIUS
attributes, etc. (See
I plan to follow the guidelines in the UK documents also.
Some Service Providers (SP) are also not sending the Calling-Station-Id
attribute to the Identity Provider (IdP) for privacy reasons. However, the
eduroam agreement signed by eduroam-us requires participants to send this
data so that the