nanog mailing list archives

Re: filtering /48 is going to be necessary


From: Jeroen Massar <jeroen () unfix org>
Date: Fri, 09 Mar 2012 10:27:04 +0100

On 2012-03-09 10:02 , Jeff Wheeler wrote:
On Fri, Mar 9, 2012 at 3:23 AM, Mehmet Akcin <mehmet () akcin net> wrote:
if you know anyone who is filtering /48 , you can start telling them to STOP doing so as a good citizen of internet6.

I had a bit of off-list discussion about this topic, and I was not
going to bring it up today on-list, but since the other point of view
is already there, I may as well.

Unless you are going to pay the bill for my clients to upgrade their
3BXL/3CXL systems (and similar) to XXL and then XXXL, I think we need
to do two things before IPv6 up-take is really broad:

1) absolutely must drop /48 de-aggregates from ISP blocks

See the strict filter at:
 http://www.space.net/~gert/RIPE/ipv6-filters.html

which has been proposed for quite a long time already.

Also note the existence of this awesome thing called RPSL.

See also this great presentation by ras:
http://www.nanog.org/meetings/nanog44/presentations/Tuesday/RAS_irrdata_N44.pdf

and the very recent column by Geoff Huston:
http://www.potaroo.net/ispcol/2012-03/leaks.html

2) absolutely must make RIR policy so orgs can get /48s for
anycasting, and whatever other purposes

One can already receive those easily, generally as a /48.

Also, quite a few organizations are requesting disjunct /32's per
country or at least a /32 per region....

Greets,
 Jeroen


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