Summarising: you should get radiusclient-ng-0.5.5, but I guess you have it or can easily google for it... install it on the same machine SER running, configuing radiusclient.confwith the radius server's parameters (IP,password,etc..) you have to include in both radius client and server the dictionary present in ser's etc subdirectory named dictionary.ser in ser.cfg you should set up next parameters: # -- radius params -- modparam("auth_radius","radius_config","/usr/local/etc/radiusclient-ng/radiusclient.conf") modparam("auth_radius","service_type",15) and use next lines to authenticate users in the routing logic: if (!radius_www_authenticate("$fd.digest_realm")) { if ($? == -2) { sl_send_reply("500", "Internal Server Error"); } else if ($? == -3) { sl_send_reply("400", "Bad Request"); } else { if ($digest_challenge) { append_to_reply("%$digest_challenge"); } sl_send_reply("401", "Unauthorized"); } drop; }; I have SER 2.0 working with freeradius without major problems...case you need more info, reply and I'll try to help if time magically appears ;) sam 2007/9/7, Mike Trest - Personal <Mike(a)trest.com>om>: