You do not need any additional license to use L2TP in AR 3.5.You should at least post what the symptoms are, some configuration, and the trace(debug) so that others can try to understand the problem.

Multiprocessor machines require the AR-CPU license in addition to the AR-STANDARD license.Did you purchase AR-ADD-CPU as well as AR-3.5-BASE-K9? This is required for multiproc machines.

Miguel, I would turn tracing on in aregcmd to see what's going on. Set it to trace level 5:trace /r 5and then check the output in logs/name_radius_1_trace after sending another request.

You need to write a prepaid service in AR that utilizes AR's prepaid APIs.Cisco can make the APIs available to you under NDA. Please ask your Cisco account team to contact the AR product marketing team to arrange this.

The AR prepaid solution is designed to work with a billing server. The billing server holds the subscriber quota information and allocates quota. AR converts the RADIUS prepaid requests from the RADIUS client, in this case SSG, into requests the bill...