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

Ryan Rawdon ryan at
Mon Aug 20 18:43:05 CEST 2012

On Aug 20, 2012, at 11:37 AM, Nick Hilliard wrote:

> On 20/08/2012 17:17, Jeroen Massar wrote:
>> Announcing /48s will get filtered and this randomly breaks stuff.
>> One would think that Akamai had enough moneyz to pay everybody to accept
>> those /48s into their or at least then to get a disjunct /32...
>> Dear Akamai: It is a PA prefix as in AGGREGATED...
> Jeroen,
> I'm counting ~800 prefixes in the DMZ for Akamai's v4 requirements.  Can
> you suggest an alternative strategy for multihoming 800 ipv6 CDN sites
> which is less problematic than announcing 800 /48s out of a single /32?
> Nick

It looks like this was resolved once in the past, and I am seeing it announced as a /32 from AS34164 currently:

Announced By
Origin AS	Announcement	Description
AS20940	2a02:26f0:000c::/48	Akamai Technologies

Less Specific Announcements
Origin AS	Announcement	Description
AS34164	2a02:26f0::/32	Akamai Technologies

Nick, I believe Jeroen is commenting that he sees only /48s and not the less-specific /32, leading to brokenness in ASNs which filter /48s from PA allocations.  However as mentioned above, this does not seem to be the case from my point of view (the pastes above are from


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