Cisco IPv6 Exploit, was Re: 6to4 routes disappeared from most of North America

Someone on another list was wondering if this IPv6 exploit might have something to do with the NANOG thread from a few days ago titled "6to4 routes disappeared from most of North America". http://www.merit.edu/mail.archives/nanog/msg09747.html Is there any reason to think that these might be related, or do we already know for certain that they're completely unrelated? Regards, John