6to4 status (again)

[Brian E Carpenter]

On 01/03/2013 13:20, Tim Chown wrote:
...
> The question really is how many systems are using 6to4 by choice? If it's an issue with address selection where native IPv4 and 6to4 exist, then that should be fixed, else the relays will always be needed.  

You can't fix legacy clients and CE devices, that's the problem. If they are
young enough to have v6 enabled by default, but old enough to have anycast 6to4
enabled by default and v6 always preferred, they will try 6to4 and will not fall
back to v4.

(The story is similar for Teredo.)

     Brian