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DirectAccess Requirements

Updated: September 17, 2010

Applies To: Windows Server 2008 R2

DirectAccess requires the following:

  • One or more DirectAccess servers running Windows Server 2008 R2 (with or without UAG) with two network adapters: one that is connected directly to the Internet and one that is connected to the intranet. DirectAccess servers must be a member of an AD DS domain.

  • On the DirectAccess server, at least two consecutive, public IPv4 addresses assigned to the network adapter that is connected to the Internet.

  • DirectAccess client computers that are running Windows 7 Enterprise or Windows 7 Ultimate. DirectAccess clients must be members of an AD DS domain.

  • At least one domain controller and DNS server that is running Windows Server 2008 SP2 or Windows Server 2008 R2. When UAG is used, DirectAccess can be deployed with DNS servers and domain controllers that are running Windows Server 2003 when NAT64 functionality is enabled.

  • A public key infrastructure (PKI) to issue computer certificates, and optionally, smart card certificates for smart card authentication and health certificates for NAP. For more information, see Public Key Infrastructure on the Microsoft Web site.

  • Without UAG, an optional NAT64 device to provide access to IPv4-only resources for DirectAccess clients. DirectAccess with UAG provides a built-in NAT64.

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