Re: Time to add 2002::/16 to bogon filters?

[Jared Mauch <jared () puck nether net>]

> On Jun 18, 2018, at 5:08 PM, Job Snijders <job () ntt net> wrote:
>
> Dear all,
>
> TL;DR: Perhaps it is time to add 2002::/16 to our EBGP bogon filters?
>
> It is kind of strange that in the default-free zone (where we don’t
> announce defaults to each other) - we will propagate what is effectively an
> IPv4 default-route, in the IPv6 DFZ.
>
> IETF has politely abandoned the prefix:
> https://tools.ietf.org/html/rfc7526


I don’t believe there is a reason that folks should accept this prefix from a transit/peer.  If they have need for 6to4 
within their network, they should operate their own local 6to4 relays.

It seems native IPv6 is fairly widely available:

https://www.google.com/intl/en/ipv6/statistics.html

And there is almost zero 6to4 activity in those stats as well.  Since it’s a known path for abuse as well, I would 
expect networks to not carry these IPv6 routes and filter them.

- Jared