[143199] in North American Network Operators' Group
Re: dynamic or static IPv6 prefixes to residential customers
daemon@ATHENA.MIT.EDU (Owen DeLong)
Tue Aug 2 16:12:38 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <CADVasu63Q+X0bbkqFMTQfTEOmLmLw2Lq28uW3gBat5f_uEZ=qQ@mail.gmail.com>
Date: Tue, 2 Aug 2011 13:09:40 -0700
To: james machado <hvgeekwtrvl@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Aug 2, 2011, at 12:51 PM, james machado wrote:
>> I don't understand why this is a problem if your ISP gives you a =
static address.
>> There are, of course, other sources of addresses available as well.
>> Nobody has yet presented me a situation where I would prefer to use =
ULA over GUA.
>>=20
>>> while link-local is necessary it's also probably not sufficient.
>>>=20
>> t
>> True.
>>=20
>> Owen
>=20
> Lets look at some issues here.
>=20
> 1) it's unlikely that a "normal" household with 2.5 kids and a dog/cat
> will be able to qualify for their own end user assignment from ARIN.
>=20
Interesting...
I have a "normal household".
I lack 2.5 kids and have no dog or cat.
I have my own ARIN assignment.
Are you saying that the 2.5 kids and the dog/cat would disqualify them? =
I can't
find such a statement in ARIN policy.
Are you saying that a household that multihomes is abnormal? Perhaps =
today,
but, not necessarily so in the future.
> 2) if their router goes down they loose network connectivity on the
> same subnet due to loosing their ISP assigned prefix.
>=20
I keep hearing this myth, and I really do not understand where it comes =
from.
If they get a static prefix from their ISP and configure it into their =
router and/or
other equipment, it does not go away when they loose their router. It =
simply
isn't true.
> 3) If they are getting dynamic IP's from their ISP and it changes they
> may or may not be able to print, connect to a share, things like that.
>=20
Perhaps, but, this is another reason that I think sane customers will =
start demanding
static IPv6 from their providers in relatively short order.
> these 3 items make a case for everybody having a ULA. however while
> many of the technical bent will be able to manage multiple addresses I
> know how much tech support I'll be providing my parents with either an
> IP address that goes away/changes or multiple IP addresses. I'll set
> them up on a ULA so there is consistency.
>=20
No, they don't. They make a great case for giving people static GUA.
> Complain about NAT all you want but NAT + RFC 1918 addressing in IPv4
> made things such as these much nicer in a home and business setting.
>=20
No, it really didn't. If IPv4 had contained enough addresses we probably
wouldn't have always-on dynamic connections in the first place.
Owen
