Hi,
0) why do you want to use ISA 2006 EE? If you only use one ISA server you can use ISA 2006 Standard
1) yes, you have to create Firewall rules to allow access and the network rule relationship must be ROUTE
2) in general yes, but it depends on the load:
http://technet.microsoft.com/en-us/library/bb794835.aspx3) it depends, but this harwader looks like enough Hardware
http://www.microsoft.com/forefront/edgesecurity/isaserver/en/us/system-requirements.aspx4) OK, you must use 2 Servers with ISA 2006 Enterprise
http://technet.microsoft.com/en-us/library/bb794741.aspxhttp://technet.microsoft.com/en-us/library/cc302580.aspxregards Marc
www.nt-faq.de
www.it-training-grote.dewww.forefront-tmg.de