I love GPL, but unfortunatelly there is too few software being developed for Radius...

That was my problem too !

All I need is actually: - bandwith, time, volume limitation - username/password authentication - MAC authentication (but here is a trick - few MAC's for a one "billing" user) - card generator

Almost everything covered !

And of course something that would allow me to print bills ;)

I have PDF generation :)

Do you know anything, that would do that? Not at the time of writing this. PhpMyPrePaid has some of interesting features.

I suppose, that as your project is a Uni project, you can't make it as GPL?

Actually I am developing it for my company and my BS project is about data accounting and anomaly detection in systems that use RADIUS ! I'll let you know ! Anyone interested in supporting this project ? Regards, E:S