[168465] in North American Network Operators' Group
Re: Will a single /27 get fully routed these days?
daemon@ATHENA.MIT.EDU (Sander Steffann)
Sun Jan 26 03:39:31 2014
From: Sander Steffann <sander@steffann.nl>
In-Reply-To: <7FAEDEE0-575B-4D9B-A0A9-E77B352AB172@delong.com>
Date: Sun, 26 Jan 2014 09:39:12 +0100
To: Owen Delong <owen@delong.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hi Owen,
>> Same question=85 Will people adjust their filters, (even if only for =
that prefix)? All over the world? I think 'will adjust their filters for =
XYZ' is highly optimistic, but let's hope it will work, otherwise the =
ISPs in the ARIN region will have a problem. (Or maybe not: existing =
ISPs (for who a /2[4-8] is not a significant amount) might not mind if a =
new competitors only gets a /2[5-8] that they cannot route globally. But =
I really hope it doesn't come to that.)
>=20
> Realistically, anyone depending on IPv4 is going to has a growing =
problem which will only continue to grow.
Yes, but those last IPv4 addresses are for ISPs who work with IPv6 and =
need a little bit of IPv4 to communicate with the legacy world. If they =
can't even do that it will be extra hard (impossible?) for them to =
function.
>> But more important: which /10 is set aside for this? It is not listed =
on https://www.arin.net/knowledge/ip_blocks.html
>=20
> I'm not sure it has been determined yet, let alone announced.
According to https://www.arin.net/resources/request/ipv4_countdown.html =
phase one it should have been done in September 2012: 'IPv4 address =
space required for NRPM 4.10, which sets aside a contiguous IPv4 /10 =
block to facilitate IPv6 deployment, was reserved and removed from the =
remaining IPv4 address pool.' I can't find anything more specific =
though...
>>> Consider the possibility of a policy change which allows the =
transfer of smaller blocks (current ARIN policy limits this to /24 =
minimum, but ARIN policy is not immutable, we have a policy development =
process so that anyone who wants to can start the process of changing =
it.)
>>=20
>> I=92m well aware of that, but I=92ll stick to RIPE policies for now =
:-)
>=20
> I admit I'm not familiar with the details of the RIPE policy in this =
regard. Do they allow longer prefixes to be transferred and/or acquired?
Allow: yes. Anybody doing that for globally routable purposes: no. =
Although it can be used for networks that don't need to be in the global =
BGP table.
> I will point out that the NA in NANOG mostly refers to the ARIN =
region.
??? No idea what this comment is supposed to mean. You may find this =
weird, but since the Internet is actually a global network I do care =
about what happens in NA...
Cheers,
Sander
