Hi NZnogers: It's a strange subject, which replicates the conclusion from Cisco while deploying/operating a large wireless IPv6 network for Cisco Live 2013. Slides are here https://ripe66.ripe.net/presentations/113-CiscoLive-IPv6-RIPE.pdf Cheers, -- Sebastian Castro DNS Specialist .nz Registry Services (New Zealand Domain Name Registry Limited) desk: +64 4 495 2337 mobile: +64 21 400535