Hi , I'm using free-radius on my debian linux. Free radius is contacting external WINDOWS AD server for authentication. The topology is to authenticate Mobile unites[MU] connecting to wireless network. The MU's are authenticated along with group verification. During group verification I'm able to configure Login-Time also as one of the check. Along with this I need to verify the SSID via which MU's are connecting. Please guide me what changes/add I need to do in config file of Radius. Below is my user file content: */root # more /etc/raddb/users* *DEFAULT Realm != "NULL"* *anonymous Auth-Type := EAP* * Fall-Through = No* *Anonymous Auth-Type := EAP* * Fall-Through = No* *#Access Policy for Guest Users....* *# primary ldap group policy configuration* *# Policy for the groups* *DEFAULT ldap_primary-Ldap-Group == "adarsha_radius_group_1", Login-Time := "Any0600-2359"* * Symbol-User-Group = "adarsha_radius_group_1",* * Symbol-Allowed-ESSID += "adarsha_wlan"* *DEFAULT ldap_primary-Ldap-Group == "adarsha_radius_group", Login-Time := "Any0600-2359"* * Symbol-User-Group = "adarsha_radius_group",* * Symbol-Allowed-ESSID += "adhi_2"* *DEFAULT ldap_primary-Ldap-Group == "adarsha_radius_group_2", Login-Time := "Any0000-2359"* * Symbol-User-Group = "adarsha_radius_group_2",* *DEFAULT Auth-Type := Reject* I need to use Symbol-Allowed-ESSID as one of the parameter for group verification. Currently its only group and login time: *ldap_primary-Ldap-Group == "adarsha_radius_group_1", Login-Time := "Any0600-2359"* Please guide me Thanks, Adarsha