Let me preface this by saying I never got this running. 2 NIC cards 1 to internet and 1 to internal network - not 3. Didn't set up a DMZ. Firewall is a basic Linksys home grade router along with SBS basic firewall. After hours of research, cussing, and beer, came to this - ISA 2004 is designed to run as a proxy server in front of another server on the internet. Problem is that SBS doesn't play with another server on the network. Win server alone doesn't have that problem. Thank you microsoft. There is a way people that can run ISA on top of SBS but I don't know how to do this. All I know is that it didn't work for me when I did the standard install. Since I have R2 I have ISA 2006 but have not tried it since 2004 was so bad. Let me know if u get it fired up and running smooth.
