Re: Advantages and disadvantages of using CB64 type of identifiers

[Brian E Carpenter <brc@zurich.ibm.com>]

Jari Arkko wrote:
...
>  But on the other hand, if we choose a multi6
> mechanism that mandates the same interface ID to be used, then
> that choice is taken away from the managers: they can either
> give up multihoming or privacy.)

Let's be clear that all they are giving up is the small amount of
privacy that is optionally available in IPv6 by using temporary
values in the IID. They are not giving up privacy in any general
sense, which is mainly an applications layer issue.

We have to be very careful about this to avoid any risk of
misinformed urban legends about multi6 and privacy.

If multi6, for example, extends the scope of a temporary IID
from one to several interfaces or even from one to several sessions,
we don't have a privacy problem. If it *only* works with an Ethernet-
derived IID, we might have a problem.

   Brian