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

Job Snijders job at ntt.net
Mon Jun 18 21:08:05 UTC 2018

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:

Wes George highlighted operational problems from accepting 2002::/16 on the
data-plane slide 6:

Is there still really any legit reason left to accept, or propagate,
2002::/16 on EBGP sessions in the DFZ?

Kind regards,


More information about the NANOG mailing list