If you leave the space out of 2000::/3 as 'unassigned' and I'm an
implementor, I may put special code when sending a unicast
packet to make sure that SRC & DST addresses are within the valid range...
- Alain.
On Thursday, February 20, 2003, at 07:55 PM, Michel Py wrote:
Alain,Alain Durand RFC2374 was the definition of addresses for Format Prefix 001 (2000::/3) which is formally made historic by this document. Although, as specified in [ARCH], IANA should limit the IPv6 Global Unicast address space to 2000::/3 for now, the rest of the unassigned IPv6 address space should be treated as Global Unicast.This is dangerous, IMHO. What we do not want is developers hardcoding 2000::/3 in their implementations; we don't know what the needs of tomorrow are though. If someone invents a killer app that requires allocating a /3 to multicast or anycast, your text would have to be revised. There is indeed a difference between unassigned and treated as Global Unicast. Currently unassigned parts of the IPv6 space should not be treated as anything.Michel. -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
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