[175122] in North American Network Operators' Group
Re: IPv6 Default Allocation - What size allocation are you giving out
daemon@ATHENA.MIT.EDU (Owen DeLong)
Thu Oct 9 12:24:30 2014
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <1890137137.134876.1412865099546.JavaMail.zimbra@snappytelecom.net>
Date: Thu, 9 Oct 2014 09:20:14 -0700
To: Faisal Imtiaz <faisal@snappytelecom.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
On Oct 9, 2014, at 7:31 AM, Faisal Imtiaz <faisal@snappytelecom.net> =
wrote:
>>> Selection of a default prefix is easy. Here are the steps.
>>>=20
>>> 4. Keeping in mind
>>>=20
>>> 4.1 Prefixes longer than somewhere around /48 to /56 may be
>>> excluded from the global routing table
>>=20
>> 4.1a Prefix cutouts of any size (including /48) from inside your /32
>> or larger block may be excluded from the global routing table. Folks
>> who are multihomed and thus need to advertise their own block with =
BGP
>> should be referred to ARIN for a direct assignment. Folks who aren't
>> multihomed, well, until given evidence otherwise I claim there are no
>> single-homed entities who will use 65,000 LANs, let alone more.
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>=20
> This brings up another interesting question...
>=20
> We operate Two separate networks in two geographical locations (Two =
ASN), we have a single /32 allocation from ARIN.
>=20
> Question: Should we be asking ARIN for another /32 so that each =
network has it's own /32 or should be break out the /32 into /36 and =
use these in each of the geographies ?
Depends on your needs=85 Either is a viable solution, depending on your =
circumstances. ARIN has an MDN policy which would facilitate your =
acquisition of a second /32.
Owen
