host-identifier with IPv6

[Sten Carlsen]

Ted Lemon wrote:
>
> This is a contrived example.   Of course in this case the MAC address
> is more stable.   On the other hand, when I get a new Macintosh, I
> typically do a brain transplant from the old Macintosh.   So for me,
> the MAC address changes, and the DUID is stable.
Interesting, last time I did that I kept also the old MAC - Does that
mean that I now have two MACs with the same DUID but different
mac-addresses? How should I expect that to work if they are connected to
e.g. the same switch?
> This is just not the way things normally go.   Normally you go down to
> Best Buy and buy a device, and you plug it in, and because it follows
> the DOCSIS spec, it Just Works.   It's a lot of extra work for the ISP
> to track the Mac address of the device, and it's usually unnecessary
> since you're going to be more reliably identified by your circuit ID.
In this country the normal way is that when you sign up for an
ADSL-line, they send you a modem/router. Only with this equipment will
they accept you as a customer. In some cases you can be allowed to bring
your own, but that is not usual.

Do I understand you correctly that you say I should only be concerned
about what port the PC is sitting on, not its DUID regarding what it
means, only that it is unique? Does that kill all unmanaged switches?
Forgive me, but I don't quite see where this goes in terms of how the
problems solved by knowing the mac-address in IPv4 should be solved in IPv6.

-- 
Best regards

Sten Carlsen

No improvements come from shouting:

       "MALE BOVINE MANURE!!!"