On Sat, 2006-07-01 at 03:21 -0400, Michael J Freedman wrote: > http://illuminati.coralcdn.org/stats/ > > Obviously, various deployments may differ (i.e., .mil addresses are the > most NAT'd, while .edu are the least according to our measurements). > Still, our aggregate dataset currently covers over 2.6 million hosts from > more than 200 countries, so it's at least fairly representative.
Very interesting! The one I found particularly worrying is the Use of Reserved Addresses behind NATs (http://illuminati.coralcdn.org/imgs/datagen/nats-by-prefix-reserved-bar.png) Do you have any stats on whether some NAT'ed subnets are (inappropriately) using non-reserved blocks. For example: 41.0.0.0/8 used to be reserved and was being used internally by FastWeb (Italy, Turin); it then got assigned to AfriNIC (http://www.merit.edu/mail.archives/nanog/msg00288.html) Consequently, some people in Turin cannot reach some people in Africa -- NAT or no NAT. Your graph shows that this isn't an isolated event either (assuming the subnets represented are not all from FastWeb). Eeeek! -- Saikat
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