The youtube video below demonstrates that rogue Router Advertizements can be a serious DOS attack, which can crash all IPv6 Windows systems in a local area network.
http://www.youtube.com/watch?v=GA_w87K_Iuo&feature=player_embedded
This has been reported to Microsoft for some time. As usual, Microsoft says there is is no fix at this moment.
This scenario will not happen to in our office as we know for sure autoconfiguration presents too many risks in a corporate network environment. We will use DHCPv6 for v6 address allocation and management. We can therefore turn off router discovery function in all Windows 7 machines.
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