[143296] in North American Network Operators' Group
Re: IPv6 end user addressing
daemon@ATHENA.MIT.EDU (Owen DeLong)
Fri Aug 5 13:27:16 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <CAAv0nWCfMtcGGyEfxP54J1SpydGj88A08iKGip8NfPjhm1az6A@mail.gmail.com>
Date: Fri, 5 Aug 2011 10:20:45 -0700
To: Brian Mengel <bmengel@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
--Apple-Mail=_BA46ED4F-25FA-4E1E-A3E8-2B7EF7864914
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=iso-8859-1
/56 is definitely preferable to /64, but, /48 really is a better choice.
/56 is very limiting for autonomous hierarchical deployments.
It's not about number of subnets. It's about the ability to provide some =
flexibility
in the breadth and depth of bit fields used for creating hierarchical =
topologies
automatically.
Owen
On Aug 5, 2011, at 9:17 AM, Brian Mengel wrote:
> In reviewing IPv6 end user allocation policies, I can find little
> agreement on what prefix length is appropriate for residential end
> users. /64 and /56 seem to be the favorite candidates, with /56 being
> slightly preferred.
>=20
> I am most curious as to why a /60 prefix is not considered when trying
> to address this problem. It provides 16 /64 subnetworks, which seems
> like an adequate amount for an end user.
>=20
> Does anyone have opinions on the BCP for end user addressing in IPv6?
--Apple-Mail=_BA46ED4F-25FA-4E1E-A3E8-2B7EF7864914
Content-Disposition: attachment;
filename=smime.p7s
Content-Type: application/pkcs7-signature;
name=smime.p7s
Content-Transfer-Encoding: base64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=
--Apple-Mail=_BA46ED4F-25FA-4E1E-A3E8-2B7EF7864914--
