[127315] in North American Network Operators' Group
Re: Micro-allocation needed?
daemon@ATHENA.MIT.EDU (William Pitcock)
Mon Jun 21 17:53:38 2010
From: William Pitcock <nenolod@systeminplace.net>
To: Ask =?ISO-8859-1?Q?Bj=F8rn?= Hansen <ask@develooper.com>
In-Reply-To: <7F25AC8D-1330-41B1-815F-FEABD2EC6FA4@develooper.com>
Date: Mon, 21 Jun 2010 16:50:46 -0500
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mon, 2010-06-21 at 23:42 +0200, Ask Bjørn Hansen wrote:
> On Jun 21, 2010, at 23:34, William Pitcock wrote:
>
> > On Mon, 2010-06-21 at 23:32 +0200, Ask Bjørn Hansen wrote:
> >> Hi everyone,
> >>
> >> We're going to anycast a /24 for some DNS servers (and possibly another UDP based service)[1].
> >>
> >> I see that ARIN are listing on https://www.arin.net/knowledge/ip_blocks.html the smallest allocations from each prefix. Will we have trouble getting a /24 announced if we take it from a regular /20?
> >
> > No, you can split up allocations as you want, provided you can prove you
> > own them.
> >
> > Some providers however, won't announce anything smaller than a /24.
>
> I guess to rephrase my question:
>
> Are there (a significant number of) providers that will filter a /24 announcement from an ARIN prefix not in the list of prefixes where they allocate /24 blocks.
I have yet to encounter any. They are "your IPs" as far as they are
concerned, so they'll typically announce whatever you ask as long as
they are "your IPs".
William
