[182119] in North American Network Operators' Group
Re: Dual stack IPv6 for IPv4 depletion
daemon@ATHENA.MIT.EDU (Owen DeLong)
Fri Jul 10 12:53:17 2015
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <48C9DEBC-B3AD-4CF4-A6B0-317838B25794@matthew.at>
Date: Fri, 10 Jul 2015 09:52:11 -0700
To: Matthew Kaufman <matthew@matthew.at>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
> On Jul 10, 2015, at 03:57 , Matthew Kaufman <matthew@matthew.at> =
wrote:
>=20
>=20
>=20
>> On Jul 9, 2015, at 11:53 PM, Valdis.Kletnieks@vt.edu wrote:
>>=20
>> On Thu, 09 Jul 2015 23:33:25 -0700, Matthew Kaufman said:
>>=20
>>> One of the hopeful outcomes of IPv6 adoption was that an ISP could =
get
>>> enough to last "forever" in a single transaction. But "forever" =
isn't
>>> very long at one /48 (or more) per customer.
>>=20
>> How long does it take to blow through a /20 at /48 a customer?
>=20
> A while. But the more likely case is that the guy before you asked for =
and got a /32, because that's the minimum (and already two steps up the =
fee scale, I might add)
>=20
> You want ISPs to start with /20s? I'll support that over on PPML if =
you propose it. But I'll also ask for /20 to have a fee category of =
"small".
>=20
> Matthew Kaufman
>=20
> (Sent from my iPhone)
According to https://www.arin.net/fees/fee_schedule.html
ISP / ALLOCATIONS INITIAL REGISTRATION OR ANNUAL FEES
Service Category Initial Registration or Annual Fee
(US Dollars) IPv4 Block Size IPv6 Block Size
XX-Small $500 /22 or smaller /40 or smaller
X-Small $1,000 Larger than /22, up to and including /20 Larger =
than /40, up to and including /36
Small $2,000 Larger than /20, up to and including /18 Larger =
than /36, up to and including /32
Medium $4,000 Larger than /18, up to and including /16 Larger =
than /32, up to and including /28
Large $8,000 Larger than /16, up to and including /14 Larger =
than /28, up to and including /24
X-Large $16,000 Larger than /14, up to and including /12 Larger =
than /24, up to and including /20
XX-Large $32,000 Larger than /12 Larger than /20
If your IPv4 ISP fits in a /22 or smaller, you can hand out /48s from a =
/32 for a very long time.
(maximum 1024 customer end-sites with no addresses reserved for =
your own infrastructure, /32 =3D 65535 customer
end sites after reserving a /48 for your infrastructure)
If your IPv4 ISP fits in a /20 or smaller, you can hand out /48s from a =
/32 for a pretty long time.
(maximum 4096 customer end-sites with no addresses reserved for =
your own infrastructure, /32 =3D 65535 customer
end sites after reserving a /48 for your infrastructure)
If your IPv4 ISP fits in a /18 or smaller, you can hand out /48s from a =
/32 for quite a while.
(maximum 16,384 customer end-sites with no addresses reserved =
for your own infrastructure, /32 =3D 65535 customer
end sites after reserving a /48 for your =
infrastructure).
At IPv6 /18 or smaller, you=E2=80=99re in the same fee category as an =
IPv6 /32.
As you go up, the situation only gets better=E2=80=A6
If your ISP uses an IPv4 /16, then you have a maximum of 65,536 =
customers with no allowance for infrastructure.
For free, you can get an IPv6 /28. This allows you 16,777,215 /48 end =
sites with a /48 reserved for your infrastructure.
If your ISP uses an IPv4 /14, then you have a maximum of 262,144 =
customers with no allowance for infrastructure.
For free, you can get an IPv6 /24 to support up to 268,435,455 /48 end =
sites after reserving a /48 for infrastructure.
Sure, Matthew is going to point out that my maximum IPv4 customer =
numbers assume you aren=E2=80=99t doing CGN. That=E2=80=99s true.
Let=E2=80=99s assume you get a ratio of 64 customers per address using =
CGN (the real numbers are more like 8-16 customers
per address before stuff starts to degrade badly).
64 * 1024 =3D 65536 subscribers on a /22, assuming you have no =
infrastructure, no servers, and no customers that
refuse to accept densely packed CGN. At this point, you can =
still hand out a /48 to every customer for all
practical purposes if you have a /32 of IPv6.
Yes, the ultra-tiniest of ISPs will have to pay an extra $1,500 per year =
for their address space. Everybody else will
actually probably be able to pay less per year for address space once =
they can abandon IPv4, even if they give a /48
to every single end-site.
Owen
