You don't have to purchase CA certificates, at least I hope their not charging for those ;) 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 -- ISA Firewalls ________________________________ From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of James May Sent: Monday, August 14, 2006 12:36 PM To: isalist@xxxxxxxxxxxxx Subject: [isalist] L2TP I have isa 2004 can you tell me if I purchase a trusted root certificate for ssl owa will I still be able to run the L2TP ip/sec tunnel with the ssl certificate installed on the firewall or will I have to publish the exchange server? Jim May Defense Group Inc Santa Monica, CA 90401 jmay@xxxxxxxxxx