In message <5021742A.70804@xxxxxxxxxxxxx>, Doug Barton writes: > On 08/07/2012 00:46, Martin Rex wrote: > > IPv6 PA prefixes result in that awkward renumbering. > > Avoiding the renumbering implies provider independent > > network prefix. > > ULA on the inside + https://tools.ietf.org/html/rfc6296 If you are changing your external connection you may as well just use ULA + PA. The DNS needs to be updated in either case, the firewall needs to be updated in either case. -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@xxxxxxx