6to4 status (again)

[Lorenzo Colitti]

On Tue, Feb 26, 2013 at 6:48 AM, Kevin Day <kevin at your.org> wrote:

>
> I know this was brought up in November, but I didn't see much of a
> consensus…
>
> We run one of the public 6to4 relays. Lately traffic to it has been
> growing very rapidly and I'm really not sure why. Other people shutting
> their public relays down? More AAAA records are making more people fall
> back to 6to4? Idiots using it for DDoS?
>
> For most of 2012 the usage averaged about 50-100mbps, but lately we're
> seeing sustained levels of 500mbps-900mbps. I'd rather not deploy 10GE on
> our 6to4 box just to handle the traffic growth.
>
> Has anyone here looked at public 6to4 usage recently and seen similar
> trends?
>
> Part of me is thinking we should just rate limit the box to something more
> reasonable. While it's still running, it'll be slow enough that hopefully
> people will move to a better transitional technology. My fear is that it
> will cause more "v6 sucks, it's so slow" and people shut it off without
> looking at why.
>

This is why the public 6to4 relay model doesn't work. The people providing
the service get no benefit from it, so it cannot be properly provisioned.
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