[127313] in North American Network Operators' Group

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Re: Micro-allocation needed?

daemon@ATHENA.MIT.EDU (=?iso-8859-1?Q?Ask_Bj=F8rn_Hansen?)
Mon Jun 21 17:42:46 2010

From: =?iso-8859-1?Q?Ask_Bj=F8rn_Hansen?= <ask@develooper.com>
In-Reply-To: <1277156099.7682.72.camel@petrie>
Date: Mon, 21 Jun 2010 23:42:29 +0200
To: William Pitcock <nenolod@systeminplace.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Jun 21, 2010, at 23:34, William Pitcock wrote:

> On Mon, 2010-06-21 at 23:32 +0200, Ask Bj=F8rn Hansen wrote:
>> Hi everyone,
>>=20
>> We're going to anycast a /24 for some DNS servers (and possibly =
another UDP based service)[1].
>>=20
>> 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?
>=20
> No, you can split up allocations as you want, provided you can prove =
you
> own them.
>=20
> 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 take it from what you wrote that the answer is "No").


 - ask



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