[atlas] New measurement target suggestion: 6to4 anycast

On 2011.12.21. 12:21, Iñigo Ortiz de Urbina wrote:
> On Wed, Dec 21, 2011 at 11:57 AM, Mohacsi Janos <mohacsi at niif.hu> wrote:
>> Dear All,
>>        6to4 should not used any longer. However it would be nice to see how
>> 6to4 usage decreasing over the time....
>>
> 
> I agree. It may be interesting to see its eventual sunset, which is
> already showing up according to Google's stats:
> 
> http://www.google.com/intl/en/ipv6/statistics/

It seems that there is interest for doing this measurement, so we'll add it
to the list -- most likely in January, after the holiday break.

> Also, quoting Robert Kisteleki:
> 
> "
> We are aware that in some cases the lookup has a surprising result. One
> example is 6to4: for IPv6 related ASNs the prefix is 2002::/16 but the ASN
> can be misleading. We'll most likely stop looking up ASNs for 6to4 (and
> Teredo) prefixes. If you see anomalies *not* related to this, you can let us
> know at atlas-dev at ripe.net
> "
> 
> it is unclear (to me) how much interest and resources should be put
> into these measurements.

With the current setup we have enough control that setting up a new
system-wide measurement is not difficult. However, we have to balance the
usefulness of such measurements with the measurement capacity they consume.

Regards,
Robert