6to4 status (again)

[Lorenzo Colitti]

On Tue, Feb 26, 2013 at 3:07 PM, Keith Moore <moore at network-heretics.com>wrote:

>  The problem is that the advice is based on a false premise.  Native
> access is NOT yet widely available in many parts of the world.   If it
> were, there wouldn't be much 6to4 traffic, and turning off 6to4 relays
> wouldn't cause problems.
>
> So a recommendation to drop 6to4 relays would, at the present time, be a
> very harmful recommendation.
>

Sure, but as far as I can see, the only alternatives are:

   1. Upgrade the box with 10G interfaces, incurring substantial cost.
   2. Drop the packets, degrading service quality.

Suppose operators take the position that they don't want to upgrade the
relays because most of the traffic on them comes from third party networks,
and thus #1 is infeasible. What then?
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