So true. And it would seem that i) is a clear indication of the amount of overloading that we've applied to the IPv4 namespace.

Is a group address a locator or ID?

For LISP, it is considered an EID since it doesn't map to topology and when a host moves around and stays joined to the group, the group address doesn't change. So it is close to your definition of "Identifier".
I have a typo above. Please s/EID/ID.

I'd concur with identifier.  Is there some issue with that?

Just wondering if you should include a group address in your definition. Up until now, I think everyone is thinking about unicast- type addresses.

And also, to bring up the point Joel made, an anycast address is also known as a way to use (or abuse) a unicast address. Rather than having a formal definition and encoding (like IPv6 does).

Dino

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