There is a tool to test the maximum RADIUS requests per second your setup can handle. As for the max number of clients / NAS, that will be determined by the hardware of the NAS. As for what type of NAS ... do you really expect us to do your shopping for you? By bandwidth, I assume you mean RADIUS bandwidth. That will depend on the type of authentication and NAS used. But for 300 clients almost any user class broadband connection will suffice (in my opinion, others may know better) Please, if there is a language barrier here that is stopping you from posting sensible questions and supporting information, at least seek out an online translator so we may rake through broken English. Very few of us have time to attempt to decode your messages. Jake Sallee Godfather of Bandwidth System Engineer University of Mary Hardin-Baylor 900 College St. Belton, Texas 76513 Fone: 254-295-4658 Phax: 254-295-4221 From: freeradius-users-bounces+jake.sallee=umhb.edu@lists.freeradius.org [mailto:freeradius-users-bounces+jake.sallee=umhb.edu@lists.freeradius.org] On Behalf Of sekchel lee Sent: Monday, September 19, 2011 9:55 AM To: freeradius-users Subject: Freeradius Performance Freeradius Performance My computer Intel(R) Pentium(R) Dual CPU E2220 @ 2.40GHz RAM 2GB CentOS 5.5 NAS Client pptp and openvpn each NAS user 100 ~ 300 How many NAS Client ? The ? NAS How much bandwidth?