> I have to disagree with Keith here. If a site wants to subnet, > they get a /48 and use the 16 SLA bits to subnet, that is what > they have been designed for.
depends on what you mean by 'site', I suppose. Even if RFC 3177 is followed, I would not want the network to presume that a /64 net (such as might be assigned to a mobile network) should never be subnetted. there are good reasons to occasionally subnet a mobile network. and if we are not careful about how we allocate the top 64 bits we might need to allow subnetting of the lower 64 bits. In general, code and hardware should not presume much about the structure of addresses. Keith -------------------------------------------------------------------- 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] -------------------------------------------------------------------- -------------------------------------------------------------------- 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] --------------------------------------------------------------------