hi, I wrote patch , ldap + mac-radius for the patch to. raddb/modules/ldap Added an option to set_mac_radius_mode_without_password. enabled by set_mac_radius_mode_without_password = yes. The default is disabled in set_mac_radius_mode_without_password = no. If you enable this option you can turn off password authentication ldap on. If mac-radius, mac address authentication should be so just ignore the password. wifi device (buffalo WAPM-APG300N) use, samba4 (domain controller) on the network using the built in mac-radius ldap confirmed that it works correctly. PATCH http://rtilabs.net/files/2011_05_07/ldap_mac_radius_mode__set_mac_radius_mod... patch detail (japanese blog) http://d.hatena.ne.jp/rti7743/20110507/1304717930 http://d.hatena.ne.jp/rti7743/20110507/1304793653