% As John Klensin pointed out on this same list several weeks ago % (and I'm sure he said it better than I will), the decision to % use ambiguous local addressing in IPv4 (i.e. RFC 1918 addresses) % was partially motivated by the desire to conserve IPv4 address % space. In IPv6, we don't have an address space shortage, so there % is no reason to introduce architectural complexity to conserve % address space. % % Margaret "dont' have an address space shortage..." - Margaret -YET- IPv4 didn't have one either, in its early days. --bill Opinions expressed may not even be mine by the time you read them, and certainly don't reflect those of any other entity (legal or otherwise).