RIPE Labs had an interesting article about filtering of /48 prefixes earlier this year that might be of some interest to you: https://labs.ripe.net/Members/emileaben/ripe-atlas-a-case-study-of-ipv6-48-f... There's also a useful RIPE Labs article on general prefix filtering lengths from August last year: https://labs.ripe.net/Members/dbayer/visibility-of-prefix-lengths Edward Dore Freethought Internet On 11 Oct 2012, at 22:02, Jo Rhett wrote:
I've finally convinced $DAYJOB to deploy IPv6. Justification for the IP space is easy, however the truth is that a /64 is more than we need in all locations. However the last I heard was that you can't effectively announce anything smaller than a /48. Is this still true?
Is this likely to change in the immediate future, or do I need to ask for a /44?
-- Jo Rhett Net Consonance : net philanthropy to improve open source and internet projects.