Hi,
I googled it lot but did not come to any comprehensive solution.
http://wiki.freeradius.org/Rlm_ldap you need to ensure that the FreeRADIUS LDAP module can talk to your LDAP server - check the LDAP configuration in FreeRADIUS to ensure that the configuration, password etc etc is fine (modules/ldap in FR 2.x) then, enabled the ldap section in the required part of your configuration - ie you want to authenticate users or authorise them via ldap? uncomment the required line in eg inner-server (if using EAP) or default otherwise. the config file supplied by default should be fairly verbose - i cant say what the version you get after the pakcage maintainer has done their work on it - but , if in doubt, download the source tarball from freeradius.org and check the default contents of the raddb directory! finally, run in full debug mode radiusd -X and sniff/lof the LDAP server to ensure things are doing what you expect alan