Hi Alan and all,

Thanks Alan for you earlier reply.
I have a problem for Authenticating Radius server with Openldap backend. In the ldap.attrmap  I added the line
checkitem   User-Password userPassword and also under modules in ldap module I have set_auth_type=yes for binding LDAP  for authentication for User-Password. Also in the Sites-enabled dir under default file, I have added in the Authorize section I added,
update control {
  Auth-Type :=ldap
                      }
ldap

And also enabled pap module with auto-header yes option.

So, after configuring in this manner,still I was not able to authenticate. Please help in this regard.

SYED

####
Radius Debug Output:

rad_check_password:  Found Auth-Type ldap
auth: type "LDAP"
+- entering group LDAP
rlm_ldap: - authenticate
rlm_ldap: Attribute "User-Password" is required for authentication. Cannot use " (null)".
++[ldap] returns invalid
auth: Failed to validate the user.
  Found Post-Auth-Type Reject
+- entering group REJECT
        expand: %{User-Name} -> hasan
 attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Sending Access-Reject of id 225 to 127.0.0.1 port 1033


#using radtest: radtest hasan thales localhost 1 testing123