Hi Andrew. We usually use radius server for the authentication we don't pay attention to IP's only the usernames and passwords. If you need assistance with the radius server please let me know. Regards. Alfonso. -----Mensaje original----- De: Andrew Gilfillan [mailto:blueboxeu@xxxxxxxxx] Enviado el: martes, 24 de mayo de 2011 02:36 p.m. Para: squid-users@xxxxxxxxxxxxxxx Asunto: Secure Squid Hello, I'm having an issue with Squid, Is it possible to add a username and password onto the IP range, so the user is asked to login before using the IP? If so, could you tell me how, please!. Thanks! Andrew.