Is a /48 still the smallest thing you can route independently?

Edward Dore edward.dore at
Sun Oct 14 14:04:55 UTC 2012

RIPE Labs had an interesting article about filtering of /48 prefixes earlier this year that might be of some interest to you:

There's also a useful RIPE Labs article on general prefix filtering lengths from August last year:

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.

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