Thanks for that. I was sure that I had heard 100 million IPs were needed, but couldn't find the supporting info. -----Original Message----- From: Richard Nelson [mailto:richardn(a)cs.waikato.ac.nz] Sent: Thursday, 30 November 2006 11:36 a.m. To: nznog(a)list.waikato.ac.nz Subject: Re: [nznog] THE SKY IS FALLING ( was Re: IPv4 Exhaustion) While not wanting to spoil a good discussion with facts, there is a presentation on Comcast's plans for IPv6 from a recent NANOG here: http://www.nanog.org/mtg-0606/durand.html The summary is 20 million customers * 2.5 set-tops/customer * 2 IPs/box = 100million IPs The network design requires unique IPs. The ran out of 10net in 2005 and have got a large part of 73net from ARIN. Their long term solution (new services = more IPs/customer) is IPv6. Richard. _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog