Assuming that you are trying to lock down Win clients: Blocking peer to peer using proxy does not work. Blocking peer to peer using the firewall may not be that simple because they can sneak in/out via http What I do with my Winshock clients is to modify Windolls' hosts file using: http://www.mvps.org/winhelp2002/hosts.htm Remember to restart Win clients after modifying win's hosts file. Use transparent proxy so clients can't bypass the firewall, or no transparent proxy but block requests to http ports on the gateway. Block torrent ports using the firewall Kind regards, Yance -----Original Message----- From: Marco Strullato [mailto:marco.strullato@xxxxxxxxx] Sent: Thursday, 10 August 2006 8:25 PM To: squid-users@xxxxxxxxxxxxxxx Subject: squid & peer to peer Hi, I re-post this mail because I have not seen jet. can you suggest me a way to deny all peer to peer traffic? thanks marco -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.10.8/414 - Release Date: 8/9/2006