Microsoft KB Archive/837355

= How to configure a VPN server by using Internet Security and Acceleration (ISA) Server 2006 or ISA Server 2004 =

Article ID: 837355

Article Last Modified on 12/4/2007

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2004 Standard Edition
 * Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition
 * Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition
 * Microsoft Internet Security and Acceleration Server 2006 Standard Edition

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INTRODUCTION
A virtual private network (VPN) is the extension of a private network that encompasses links across shared or public networks such as the Internet.

By using a VPN, you can send data between two computers across a shared or public network in a manner that emulates a point-to-point private link. VPN connections allow remote users to obtain a remote access connection to an organization server by using the Internet.

From a user’s perspective, the VPN is a point-to-point connection between the computer, the VPN client, and an organization server (the VPN server).

This article discusses how to configure a Microsoft Internet Security and Acceleration (ISA) Server 2006 or ISA Server 2004 as the VPN server and how to configure VPN remote client access.



MORE INFORMATION
You can manage VPN client access to the corporate network by using the ISA Server array as the VPN server. VPN clients can be quarantined by ISA Server in the Quarantined VPN Clients network until their compliance with corporate security requirements is verified. Then, the VPN clients can be moved to the VPN Clients network. VPN client networks are subject to the ISA Server firewall access policy that controls VPN client access to network resources.

To configure VPN remote client access, follow these steps:
 * 1) Create a user group that contains users who have VPN client access and access that is controlled through a remote access policy.
 * 2) Configure VPN access on the ISA Server computer, enable access to the user group that you created in step 1, and then specify how IP addresses are allocated to incoming VPN connections.
 * 3) Configure ISA Server access rules and network rules to allow access.

For more information about how to configure VPN remote client access, visit the following Microsoft Web site:

http://go.microsoft.com/fwlink/?LinkId=58803

For more information about VPN roaming clients and quarantine control in ISA Server, visit the following Microsoft Web site:

http://go.microsoft.com/fwlink/?LinkID=35247

For more information about VPN roaming clients and quarantine control in ISA Server, Enterprise Edition, visit the following Microsoft Web site:

http://go.microsoft.com/fwlink/?LinkID=34637

For more information about how to configure VPN access in ISA Server, search on &quot;VPN&quot; in ISA Server Help.

Keywords: kbhowtomaster kbinfo kbfirewall kbisa2006swept KB837355

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