[EMAIL PROTECTED] writes:
> I would be a bit careful to use IMEI as Interface Identifier.

Hi Jonne, please let me assure you that I'm trying to be very careful
in all this.  If I speak out so frequently is just because I need to
better understand how IPv6 and 3GPP/UMTS can be made to work together.
If I'm diverging too much from the list's topic, please stop me.

> I am not really sure if this is something you want to tell the whole
> world.

Ok, privacy, yes.  Alberto mentioned that not necessarily the IMEI
should be coded but a hash of it, periodically updated starting from a
nonce.

> This is kind of confidential information from the end user point of
> view.

Aha, confidential, then it's not to be put in IPv6 addresses that are
not confidential.

> In addition, it might not always be unique...

IMEI not being unique?  That's bad, again.  Then it's probably true
that some id's are more unique than other id's.

So I try something else than IMEI: IMSI.  As IMEI is for phones, IMSI
is in the SIM cards.  Is the IMSI private?  Is it unique?

What are the other identifiers in the GSM/3GPP/UMTS?  Phone number?

Would an IMT2000 identifier be better adapted, since it has a wider
reach, more neutral.

Thanks for any info, I need to cover them all, the id's :-)

Alex

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