We have been hit with the same letters and we are currently weighing our options though I doubt even with hardware you can stop them. The truly committed that it is. Many clients can encrypt traffic and port hops so identifying this traffic could be difficult. I suppose you could QOS traffic and limit each user to 256K of upload and download and make it so painful to do anything that they themselves would cease... Don't we have better things to do? :-) Bob Ambroso Whittier Public Library -----Original Message----- From: Library NT [mailto:[log in to unmask]] On Behalf Of Felix Hotard Sent: Tuesday, March 09, 2010 8:20 AM To: [log in to unmask] Subject: [LIBNT-L] Wireless users and copyright infringement... Hello, Recently, our library received a Notice of Claimed Infringement letter from MediaSentry, a company who scours the web looking for pirated materials on behalf of their clients; in this instance, Worldwide Sony Pictures Entertainment Acquisitions Inc. It seems a patron connected to our wireless network and made available for download, via BitTorrent, some pirated material on his/her laptop. This is not the first notice of this nature we've received. Are any other libraries having this problem? What are you doing about it? The way I see it, we have three options: - Do nothing, and reply to each notice with a statement that we are a public library offering free and unrestricted wireless Internet access for our patrons to use with their own computers. - Discontinue offering the wireless connections to our patrons. Because of the heavy use at all of our locations, that wouldn't be well received. - Spend several thousand dollars on a hardware/software solution that would prevent this type of activity. Attempting to manually block all the possible ports and IP ranges at the firewall would be ineffective because of the file-sharing programs' ability to use nearly any available port. I'd like to know how other libraries are handling this. Thanks for any guidance offered! Felix Hotard West Florida Public Library