[ih] Some Questions over IPv4 Ownership

[John Day]

Noel
Are you still wrapped around the pseudo problem of separating locator 
from identity?  Haven't you noticed the fundamental flaw in your 
reasoning?  This is why LISP ran into scaling problems.

You can't locate something without identifying it and vice versa. 
See Saltzer 1977. definition of "resolve."

The problem with the Internet architecture has never been separating 
locator from identifier, but separating physical "location" from 
logical "location" and having a "location-independent" identifier as 
well.  Actually, even these location-independent identifiers are 
location-dependent in some sense, it is just that the sense of 
"location" is much different than the other two.

Your interpretation of phone numbers is correct.  As I noted, they 
are currently location-independent identifiers not addresses.  As I 
also noted in an early note, MAC addresses are not addresses either 
for the same reason.

Take care,
John

At 11:28 -0400 2010/10/12, Noel Chiappa wrote:
>     > From: Dave CROCKER <dhc2 at dcrocker.net>
>
>     > On 10/11/2010 5:14 PM, John Day wrote:
>
>     >> Do you own the address where your house is?  When you move do 
>you take it with
>     >> you? Do you get your mail at the address where you were born?
>
>     > You mean like portable phone numbers, especially ones that are easier
>     > to remember?
>
>Neither one of those analogies is entirely applicable. One phrase for
>everyone here: 'separation of location and identity'.
>
>However, the former analogy is more applicable to IPvN addresses than the
>latter. For one, portable phone numbers are (now) the equivalent of DNS
>names. I.e. to actually use them for communication, they _have_ to go through
>a binding layer, the output of which is the number's current, actual
>location. (The fact that the _syntax_ of the output of that mapping looks
>like the input, i.e. phone numbers, doesn't change the fact that the
>_semantics_ of the output - i.e. the properties of that output number - are
>different from the input.)
>
>	Noel