[150977] in North American Network Operators' Group
filtering /48 is going to be necessary
daemon@ATHENA.MIT.EDU (Jeff Wheeler)
Fri Mar 9 04:03:20 2012
Date: Fri, 9 Mar 2012 04:02:08 -0500
From: Jeff Wheeler <jsw@inconcepts.biz>
To: Mehmet Akcin <mehmet@akcin.net>
Cc: NANOG Mailing List <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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 S=
TOP 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
2) absolutely must make RIR policy so orgs can get /48s for
anycasting, and whatever other purposes
If we fail to adjust RIR policy to account for the huge amount of
accidental de-aggregation that can (and will) happen with IPv6, we
will eventually have to do #1 anyway, but a bunch of networks will
have to renumber in order take advantage of #2 down the road.
The way we are headed right now, it is likely that the IPv6 address
space being issued today will look like "the swamp" in a few short
years, and we will regret repeating this obvious mistake.
We had this discussion on the list exactly a year ago. At that time,
the average IPv6 origin ASN was announcing 1.43 routes. That figure
today is 1.57 routes per origin ASN.
--=20
Jeff S Wheeler <jsw@inconcepts.biz>
Sr Network Operator=A0 /=A0 Innovative Network Concepts
