[BEHAVE] RFC6052, RFC5735, and "non-global IPv4 addresses" with WKP

[<[e-mail]>]

Hi,

RFC6052 says in section 3.1:
--
   The Well-Known Prefix MUST NOT be used to represent non-global IPv4
   addresses, such as those defined in [RFC1918] or listed in Section 3
   of [RFC5735].
--
After reading the sentence, again, and few times more, does it mean WKP *can* be used to represent *global* IPv4 addresses listed in Section 3 of RFC5735? 

If they can be used with WKP, are all of these address blocks considered global:
- 192.88.99.0/24 - 6to4 relay anycast address - these can appear in public Internet
- 192.0.0.0/24 - IETF protocol assignments - The RFC5735 does not really state if that block is global or not.. 
- 224.0.0.0/4 multicast block

I'm asking this clarification as I'm thinking what could be good IPv4 addresses for well-known names used for NAT64 heuristic discovery. And maybe if 192.0.0.0/24 can be considered global in the spirit of RFC6052, that might be best place to get addresses.

Best regards,

	Teemu