Problem with Nortel Router - ASN

[K P Sunil]

We are testing to provide ISDN access to customer through our Nortel (Bay ) Networks - Access Stack Node as the NAS and radius is Freeradius. The problem we are facing is that the authentication is proper, but the accounting is not possible. The session id is also coming different with the Start and Stop session incrementing by 1. Because of this we are not able to do the accounting.   Pls. give your suggestions. Thanks in advance Regards Sunil