[182294] in North American Network Operators' Group
Re: Dual stack IPv6 for IPv4 depletion
daemon@ATHENA.MIT.EDU (Owen DeLong)
Tue Jul 14 19:35:18 2015
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <alpine.OSX.2.11.1507141546310.32607@ary.lan>
Date: Tue, 14 Jul 2015 16:34:53 -0700
To: "John R. Levine" <johnl@iecc.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
For one thing a /32 is nowhere near enough for anything bigger than a modest=
ISP today. Many will need /28, /24, or even larger. The biggest ones probab=
ly need /16 or even /12 in some cases.=20
Owen
On Jul 14, 2015, at 12:53, John R. Levine <johnl@iecc.com> wrote:
>> We're talking about end user assignments made by ISPs, not ISP assignment=
s. An ISP's /32 is likely the only entry one needs in the FIB.
>=20
> In that case, why should anyone care how the ISP assigns space to its cust=
omers?
>=20
> R's,
> John
