Microsoft warns firewall does not block IPv6 traffic

Microsoft is warning Windows XP and 2003 users of a flaw in the way its Internet Connection Firewall (ICF) or Basic Firewall handle IPv6 traffic. When IPv6 is enabled and the firewall is turned on, IPv4 traffic will be filtered properly, but all IPv6 traffic will be allowed through. For more, go to:;EN-US;Q306203

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