[188058] in North American Network Operators' Group
Re: IPV6 planning
daemon@ATHENA.MIT.EDU (Owen DeLong)
Mon Mar 7 19:34:38 2016
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <20160308000126.GF5234@drscott.swordarmor.fr>
Date: Mon, 7 Mar 2016 16:33:28 -0800
To: Alarig Le Lay <alarig@swordarmor.fr>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> On Mar 7, 2016, at 16:01 , Alarig Le Lay <alarig@swordarmor.fr> wrote:
>=20
> On Mon Mar 7 15:51:06 2016, Owen DeLong wrote:
>> To the best of my knowledge, Windows actually generates three
>> addresses=E2=80=A6
>>=20
>> 1. Subnet Stable quasi-randomized address unrelated (or at least not
>> reversable to) MAC address.
>> 2. Privacy address which rotates frequently (for some definition of
>> frequently).
>> 3. Stable address related to MAC address.
>>=20
>> The 3rd one is standard SLAAC.
>> The second one is standard privacy extensions.
>> THe first one is unique to Windows. You=E2=80=99ll get the same =
address every
>> time you connect to the same subnet, but you won=E2=80=99t see that =
suffix for
>> that host on any other subnet.
>=20
> It=E2=80=99s not exactly specific to Windows, dhcpcd use a something =
like that
> (my IPv6 is 2a00:5884:8316:2653:fd40:d47d:556f:c426). And at least,
> there is a RFC related to that, https://tools.ietf.org/html/rfc7217.
Yes, but in the case of Windows, that happens with SLAAC without DHCP.
TTBOMK, this is unique to windows.
Owen
