Not supported. 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 D PIETRUSZKA USWRN INTERLINK INFRA ASST MGR Sent: Tuesday, September 19, 2006 7:22 AM To: isalist@xxxxxxxxxxxxx Subject: [isalist] NLB Unicast and Multicast Hi isalist I was doing some analysis of my network and I was wondering if I could change the NLB on the ISAs to work in multicast mode. It is supposed that NLB should be configured from the ISA itself, but there is not option for multicast or unicast there, but of course that option exist if you go to NLB on the NIC properties. So, is there any problem on changing to multicast? There is any Microsoft recommendation? Thanks Regards Diego R. Pietruszka