[125916] in North American Network Operators' Group
Re: [Re: http://tools.ietf.org/search/draft-hain-ipv6-ulac-01]
daemon@ATHENA.MIT.EDU (Owen DeLong)
Mon Apr 26 11:35:41 2010
From: Owen DeLong <owen@delong.com>
In-Reply-To: <4BD5A12E.50907@sprunk.org>
Date: Mon, 26 Apr 2010 08:33:28 -0700
To: Stephen Sprunk <stephen@sprunk.org>
Cc: North American Noise and Off-topic Gripes <nanog@merit.edu>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Apr 26, 2010, at 7:20 AM, Stephen Sprunk wrote:
> On 24 Apr 2010 21:01, Mark Smith wrote:
>> On Thu, 22 Apr 2010 01:48:18 -0400
>> Christopher Morrow <morrowc.lists@gmail.com> wrote:
>>=20
>>> On Wed, Apr 21, 2010 at 5:47 PM, Mark Smith
>>> <nanog@85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org> wrote:
>>>=20
>>>> So what happens when you change providers? How are you going to =
keep using globals that now aren't yours?
>>>>=20
>>> use pi space, request it from your local friendly RIR.
>>>=20
>> I was hoping that wasn't going to be your answer. So do you expect =
every residential customer to get a PI from an RIR?
>>=20
>=20
> The vast majority of residential customers have no idea what "globals"
> or "PI" are. They use PA and they're fine with that--despite being
> forcibly renumbered every few hours/days. (Many ISPs deliberately =
tune
> their DHCP servers to give residential customers a different address
> each time for "market segmentation" reasons.)
>=20
The majority of residential cusotmers bitch about paying $20/month for
what they have and are not planning to multihome.
This was a comment about multihoming.
FWIW, this residential user has PI from an RIR (v4 and v6) and is =
multihomed
using it. It works fine.
>=20
> The only semi-rational justification for ULA-C is that organizations
> privately internetworking with other organizations are scared of ULA-R
> collisions. However, PI solves that problem just as readily. If one
> cannot afford or qualify for PI, or one wants a non-PI prefix due to
> delusions of better security, one can use a private deconfliction
> registry, e.g. <http://www.sixxs.net/tools/grh/ula/>.
>=20
The claim being made which I was attempting to refute had nothing to
do with residential. IT was that ULA-C with NAT at the border would
allow an organization to semi-transparently switch back and forth
between providers. This is a (somewhat) common practice in IPv4
for delivering (degraded) multihoming.
Owen
