Suspecious anycast prefixes

Bill Woodcock woody at pch.net
Thu May 5 02:35:23 CDT 2011


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On May 4, 2011, at 8:23 PM, Yaoqing(Joey) Liu wrote:

> Hi NANOG,
> 
> I manually extracted the origins and their org info for the announced
> block of prefixes. All these prefixes were observed being originated
> by at most four ASNs simultaneously. I suspect they provide anycast or
> IXP service, but not positive. Please confirm my conjecture if you
> know them. 

The IXP subnets are here:

http://www.pch.net/ixpdir/ip_city_country.pl

                                -Bill




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