Hi list, I am very new in FreeRadius, and there is something which is a bit strange: 0] Current config I use FreeRadius 1.1.4, out of the box. I define my authorized clients in "clients.conf". I define a user in the "users" file following the examples given in the same file: " Mickey Auth-Type :=Local, User-Password == "mouse" Reply-Message = "Hello mickey mouse" " -- 1] I send the following authentication packet (using radclient): " Service-Type = Framed-User User-Name = "Mickey" User-Password = "mouse" NAS-IP-Address = 172.24.2.103 NAS-Port = 0 " --> I get accepted -- 2] I send the following authentication packet (same + "Framed-Protocol = PPP"): " Service-Type = Framed-User Framed-Protocol = PPP User-Name = "Mickey" User-Password = "mouse" NAS-IP-Address = 172.24.2.103 NAS-Port = 0 " --> I get rejected -- 3] I create a Unix user Mickey with password "mouse" on the FreeRadius host, and I send again: " Service-Type = Framed-User Framed-Protocol = PPP User-Name = "Mickey" User-Password = "mouse" NAS-IP-Address = 172.24.2.103 NAS-Port = 0 " --> I get accepted -- 4] Here is a short extract of the FreeRadius output when I get rejected: " modcall[authorize]: module "files" returns ok for request 0 rlm_pap: WARNING! No "known good" password found for the user. Authentication may fail because of this. " -- I found a 'work-around' (using the Unix user), but could somebody explain me why do I get accepted or not depending on the "Framed-Protocol == PPP" flag sent in the request or not, and depending on the way I specify the user (file or Unix account)? Thanks a lot! Laurent