Cogent leaking /32s?

Richard A Steenbergen ras at e-gerbil.net
Fri Oct 2 22:17:47 UTC 2009


On Fri, Oct 02, 2009 at 10:54:13AM -0500, Clue Store wrote:
> Yes, I absolutely love the /24 filtering "everybody" does. Internet
> littering at its best.
> 
> http://thyme.apnic.net/current/data-badpfx-nos

There is no rule that says you have to filter at /24, or that no other
network may ever advertise something longer. This issue is probably best
expressed as "you are highly unlikely to have full global Internet
reachability if you announce something longer than a /24", not "you are
highly unlikely to have anyone accept your announcement if it are longer
than a /24".

-- 
Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)




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