[arin-ppml] Encouraging IPv6 Transition (was: Clarify /29 assignment identification requirement)

Jimmy Hess mysidia at gmail.com
Mon May 14 22:39:01 EDT 2012

Telephone number is also not the only option, btw.  The longest IPv4
prefix ARIN allocates is a /24.

Another option is set aside a /8,  under which
every  ARIN  /24 IPv4  allocation is automatically  mapped to a unique global
unicast /32 IPv6 allocation;   that is...   under the /8,  the
assigned /24 IPv4  prefix bits are used to populate  24 bits in the IPv6 prefix.

And if the ARIN IPv4 allocation happened to be a   /20  instead,  that
would mean
that the mapped space has an address size of    /28.

The disadvantage is it requires a  prior address assignment from ARIN.

And extra work to make sure an org id  with multiple  IPv4 allocations can only
have one of them mapped at a time to an IPv6 allocation.

On 5/14/12, Jimmy Hess <mysidia at gmail.com> wrote:
> On 5/14/12, Owen DeLong <owen at delong.com> wrote:
> [snip]
>> Ick! I really don't want to have to renumber my IP network every time my
>> telephone number changes. I don't know where you live, but, in the US,
>> there
>> is virtually no such thing as a "permanent" telephone number.
> Huh?    Phone numbers are actually owned by the end customer, not the
> telco, as long as they maintain phone service, and they are therefore
> much more permanent than IP addresses.    You actually own your phone
> number,  you don't actually own IP addresses that you are assigned.
>  A key difference:  Phone numbers are even portable between providers
> and to/from  local cell phone providers, as long as the end user org
> maintains phone service,  you can't do the same with PA  address
> assignments in IPv4 or IPv6.
> The ability to maintain permanent ownership is what makes the phone
> number a perfect identifier to leverage for IP address automatic
> assignment.     The organization just needs to use some care, and make
> sure to pick a phone number, such as their 800#, they already have to
> indefinitely maintain  for other business purposes.
> Businesses spend large amounts of advertising dollars publishing their
> phone numbers  which are used by their customers,  in advert material,
> directories, etc;  it would be a pretty big disaster if their number
> "changed",  as they would now be losing business.
> Organizations'  contact numbers are not like your home phone number
> that you can change all the time without a big disadvantage.
> --
> -JH


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