Date:        Sun, 17 Mar 2002 15:23:07 +0100 (CET)
    From:        Alberto Escudero-Pascual <[EMAIL PROTECTED]>
    Message-ID:  <[EMAIL PROTECTED]>

  | (MUST, SHOULD) the (stateful) addresses provided by a DHCPv6 have the "u"
  | bit to 0 as manual configuration?

They MAY  (SHOULD is perhaps reasonable as a default setting).

  | If i buy a 1000 Ethernet cards and keep
  | them in a box under the table and set the u bit to 1 and provide those
  | EUI-64 to my users?

It would be cheaper to buy an OUI from IEEE - you get lots more EUI's
for a much lower price...   I see no reason why you couldn't do that.

But IPv6 addreses are delegated by a registry, or by someone delegated
a bigger block than you need, making sub-delegations.  They give you a
/n.   What you do with the 128-n bits inside that delegation is entirely
your business, and you don't have to take the slightest bit of notice of
anything anyone else claims that you should do.

Of course, you should be aware of the consequences of your decisions,
but whether you are or not, it is your address space for as long as the
assignment of the prefix to you remains valiue, you decide how it gets
apportioned.

kre

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