Re: [Full-Disclosure] Blocking Music Sharing.

[Larry Roberts]

Title: Message

Mark,   If you have a Cisco infrastructure you can use NBAR. NBAR looks at more than just port numbers to identify traffic and Cisco regularly writes new PDLMs to define new applications. You can also create custom lists to look for new applications that Cisco doesn't yet support. Check out the following link for more info:   http://www.cisco.com/en/US/products/sw/iosswrel/ps1838/products_feature_guide09186a0080134add.html   HTH, Larry Roberts CCIE #7886 (R&S / Security) Nexperts, Inc "The Networking Experts" Office: (602) 445-3915 Fax: (602) 288-8616     ----- Original Message ----- From: Johnson, Mark To: [EMAIL PROTECTED] Sent: Monday, September 15, 2003 9:37 AM Subject: [Full-Disclosure] Blocking Music Sharing. Due to the legal issues, I am trying to block access to sites like Kazaa and Limewire in the office.  If I am not mistaken, these networks can use different ports each time, so there is no way to block it at the firewall.  Is this right?  And if so, what is the best way to block access to these types of sites?   Many thanks, Mark J.