The policies available in all the 5 RIR regions, allow you to request not the "default" /32, but whatever is appropriate for the size of your network even if you provide to your end-users /48. Not an issue. Regards, Jordi -----Original Message----- From: Matthew Walster <matthew@walster.org> To: Owen DeLong <owen@delong.com> Cc: nanog@nanog.org Date: Thu, 29 Jul 2010 16:00:40 +0100 Subject: Re: Addressing plan exercise for our IPv6 course On 29 July 2010 15:49, Owen DeLong <owen@delong.com> wrote:
If we give every household on the planet a /48 (approximately 3 billion
/48s), we consume less than 1/8192 of 2000::/3.
There are 65,536 /48s in a /32. It's not about how available 2000::/3 is, it's hassle to keep requesting additional PA space. Some ISPs literally have millions of customers. All I'm saying is, why waste the space when they're only going to need 1 subnet? If they want more than one subnet, give them a /48,/56,/60 or whatever, as requested. M ********************************************** The IPv6 Portal: http://www.ipv6tf.org This electronic message contains information which may be privileged or confidential. The information is intended to be for the use of the individual(s) named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, including attached files, is prohibited.