Dear Akamai, you got a /32 there not a bunch of /48s - how to break Facebook and annoy lots of users

Gert Doering gert at
Tue Aug 21 11:20:45 CEST 2012


On Tue, Aug 21, 2012 at 08:50:01AM +0200, Tore Anderson wrote:
> filtering. Under current RIPE policies, any back-yard LIR can get an
> IPv6 /29. That's 524288 /48s. Next consider the possibility that someone
> will fat finger and leak every single one of those into the DFZ. It will
> be very difficult to automatically distinguish between such a leak and
> your current use of /48s.

Oh, that's quite easy.  Look at the route6: objects.  Accidential leaks
won't have any...

(Alternatively, look at the ROAs, but those might actually be wrong - people
leaking zillions of /48s might as well click on "up to /128 is ok!" in
their ROAs...)

Gert Doering
        -- NetMaster
have you enabled IPv6 on something today...?

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