6to4 route at AS27552? (AS7922?)

[Brian E Carpenter]

On 02/11/2012 05:01, Ivan Shmakov wrote:
>>>>>> Gert Doering <gert at space.net> writes:
>>>>>> On Mon, Oct 22, 2012 at 11:29:57PM +0700, Ivan Shmakov wrote:
> 
>  >> Any suggestions?  (Apart from leaving the wonderful world of 6to4,
>  >> that is.)
> 
>  > That.
> 
> 	I wonder what would be the cost of disabling 6to4 on each and
> 	every single networking device willing to connect 2001:4830::/32
> 	(and has 6to4 currently enabled), as compared to the cost of
> 	fixing one single route?
> 
>  > For the reasons you have given: hard to track problems caused by
>  > people that do not really understand what they are doing.
> 
> 	I don't seem to understand.  Isn't it possible to have a stray
> 	route towards any other network prefix, as it's possible for
> 	2002::/16?

Yes, but all 6to4 relays are supposed to do exactly the same thing,
so 2002::/16 is effectively an anycast prefix, which is a bit unusual.
Really, please read RFC 6343 carefully.

   Brian