Internet Connection Firewall and Basic Firewall do not block Internet Protocol Version 6 traffic

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Article ID: 306203 - View products that this article applies to.
This article was previously published under Q306203
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SYMPTOMS

With Microsoft Internet Protocol version 6 (IPv6) installed and Internet Connection Firewall (ICF) or Basic Firewall enabled, the firewall filters Internet Protocol version 4 (IPv4) traffic, but the basic firewall and the ICF do not block or filter IPv6 traffic.

Note ICF is available on Microsoft Windows XP and Microsoft Windows Server 2003, Standard Edition and Windows Server 2003, Enterprise Edition. Basic Firewall is a component of Routing and Remote Access that you can enable for any public interface on a computer that is running Routing and Remote Access and is a member of the Windows Server 2003 family.

CAUSE

ICF in Windows XP and Windows XP Service Pack 1 (SP1), and ICF and Basic Firewall in Windows Server 2003, filter IPv4 traffic only.

RESOLUTION

Windows XP

To resolve this problem, obtain and install the Advanced Networking Pack for Windows XP. For additional information about the Advanced Networking Pack for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
817778 Overview of the Advanced Networking Pack for Windows XP

WORKAROUND

To work around this behavior, obtain firewall software that can filter and block IPv6 traffic.

MORE INFORMATION

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
320855 Description of the Windows XP Internet Connection Firewall
For additional information on IPv6, see the following Microsoft Web site:
http://technet.microsoft.com/en-us/network/bb530961.aspx
For security information for IPv6, see the following Microsoft Web site:
http://technet2.microsoft.com/windowsserver/en/library/b5306e70-43ca-40ff-8de7-2f142ea2b7a21033.mspx

Properties

Article ID: 306203 - Last Review: October 26, 2007 - Revision: 6.7
APPLIES TO
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Home Edition SP1
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Professional SP1
  • Microsoft Windows XP Tablet PC Edition
Keywords: 
kbenv kbnetwork kbprb KB306203

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