Thank you all for the valuable suggestions. I have one AP connected directly to radius server. For this, I have a entry in the nas table and was working fine. Now I have this client dynamic { ipaddr = 0.0.0.0 netmask = 0 dynamic_clients = dynamic_client_server lifetime = 86400 } and also changed the secret in my dynamic-clients to reflect my local AP's secret. I have removed the entry of my local AP from nas table and restarted the radius. Since dynamic-clients is in action, I thought I can authenticate through my local AP (since any ip should be fine with this config) but now the request is ignored. What can be the cause? Thanks again -- ============================== Registered Linux User #460714 Currently Using Fedora 10, CentOS 5.3 ==============================