http://msmvps.com/blogs/shinder/archive/2004/04/29/5624.aspxSpoof detection in ISA 2004 firewalls is a handy feature that helps protect the firewall from spoof attacks. However, there are some circumstances that generate spurious spoofs , such as when implementing NLB. No problem! Here's the fix, courtesy of ourenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/shinder/archive/2004/04/29/5624.aspx#58963Fri, 22 Jul 2005 15:13:00 GMTd67277c4-116b-43f1-b688-e9ef184ea916:58963TrackBackDisabling Spoof Detection in ISA 2004 Firewallsooeess<div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=58963" width="1" height="1">http://msmvps.com/blogs/shinder/archive/2004/04/29/5624.aspx#48025Fri, 20 May 2005 00:43:00 GMTd67277c4-116b-43f1-b688-e9ef184ea916:48025TrackBack^_~,pretty good!csharpsseeoo<div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=48025" width="1" height="1">http://msmvps.com/blogs/shinder/archive/2004/04/29/5624.aspx#16703Tue, 26 Oct 2004 13:36:00 GMTd67277c4-116b-43f1-b688-e9ef184ea916:16703shinderAre you sure this is ISA 2004 related? The article 284811 subject is ISA 2000. I think ISA 2004 doesn't support NLB (see <a target="_new" href="http://support.microsoft.com/?id=884319">http://support.microsoft.com/?id=884319</a>). Or can I apply this on ISA 2004 and can handle NLB after it?<div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=16703" width="1" height="1">