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

I started the 6to4 thread, so....

I personally doubt they're related. I noticed the lack of 6to4 connectivity
a couple months ago, and though it to be transient; it appears instead to be
an artifact of laziness on the part of v6 network carriers.

But, since I love to feed the conspiracy nuts anyway: Maybe the Tier-1s
were afraid that the malformed-v6 exploit could somehow be triggered by 6to4
injection and wanted to isolate the v6 network more from the more hostile v4
world.

Naaaaaah. My money's on laziness; it's usually the case. :sunglasses:

Never attribute to laziness that which can be explained by incompetence. :slight_smile:

R

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