Microsoft Comment on ISA and Windows Small Business Server 2008, for customers migrating from SBS 2003 R2 Premium to SBS 2008 and may want ISA or equivalent product.
ISA will not be included in SBS 2008.
Customers with active Software Assurance for SBS 2003:
Customers with active Software Assurance for SBS 2003 R2 Premium will be “made whole” by also receiving a free copy of ISA 2006 Standard Edition along with a separate copy of Windows Server 2003 R2 (since ISA Server 2006 does not run on Windows Server 2008).
Upon the release of the ISA Server successor product, Threat Management Gateway (TMG) 2010, customers will be eligible for a free upgrade from ISA 2006 to TMG 2010 Standard Edition. Once upgraded to TMG 2010, customers will have to maintain software assurance coverage for TMG 2010 independent of their software assurance coverage for SBS 2008 Premium in order to get future upgrades for TMG 2010.
Customers without active Software Assurance for SBS 2003:
Customers without active Software Assurance have to purchase a new SBS 2008 Premium Edition license, corresponding SBS 2008 CALs for each user or device accessing the server software, and a separate ISA 2006 license. And since ISA 2006 does not run on Windows Server 2008, a separate copy of Windows Server 2003 (R2) will be needed as well.
Threat Management Gateway (TMG) 2010
This cannot be run on Windows Small Business Server 2008 or Windows 2003 a second server running Windows Server 2008 will be required.
Essential Business Server 2008 includes a version of TMG but the 3 server requirement is not a realistic option a company of 5 users.
A hardware firewall may be the only consideration for small businesses wishing to deploy SBS 2008.
Further Information:
Microsoft Forefront: Threat Management Gateway 2010
Microsoft Download: Download Evaluation of TMG 2010
Microsoft EBS 2008: Essential Business Server 2008
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