As SecureNAT clients, you cannot use authentication right? ________________________________ From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Thomas W Shinder Sent: Monday, April 21, 2008 3:41 PM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Re: Blocking Instant messenging for SecureNAT It's not quite as easy as that :) First, you have to identify what IMs you want to block. Then you need to block access to their IM'ers log on site. If you want to allow authenticated users access, then you can create a second rule that allows access to those sites. Make sure to put the anonymous rule before the authenticated rule. HTH, Tom Thomas W Shinder, M.D. Site: www.isaserver.org <http://www.isaserver.org/> Blog: http://blogs.isaserver.org/shinder/ Book: http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7> MVP -- Microsoft Firewalls (ISA) ________________________________ From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Tom Rogers Sent: Monday, April 21, 2008 2:09 PM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Blocking Instant messenging for SecureNAT Can someone point me to any documentation on how to block all IM's if the clients are SecureNATs TIA, -TRogers