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RE: Comments on draft-wbeebee-ipv6-cpe-router-01.txt
> 3. I disagree with the behavior suggested for "unnumbered" model. I
> don't think a CPE router should automatically open up a maintenance
> loopback interface just because it doesn't get a global IP address.
Not quite. The unnumbered model is clearly saying the WAN interface
only acquires on a link-local address. But the WAN interface of the CPE
Router has got to have a global IPv6 address. So what choice does the
CPE Router have but to automatically spawn a Loopback interface that
will get assigned a global IPv6 address (using SLAAC, DHCPv6, or one
address from the IA_PD when the Loopback interface uses, say, stateless
DHCPv6 to acquire an IA_PD).