Suspecious anycast prefixes

bmanning at vacation.karoshi.com bmanning at vacation.karoshi.com
Thu May 5 13:16:45 CDT 2011


On Thu, May 05, 2011 at 11:54:17AM +0300, Joe Abley wrote:
> 
> On 2011-05-05, at 11:46, bmanning at vacation.karoshi.com wrote:
> 
> > On Wed, May 04, 2011 at 10:23:12PM -0500, Yaoqing(Joey) Liu wrote:
> >> 198.32.64.0/24
> >> AS4555:ASName: EP0-BLK-ASNBLOCK-5;OrgName:Almond Oil Process, LLC.
> >> AS9584:as-name:GENESIS-AP|descr:Diyixian.com Limited|country:HK
> >> AS20144:ASName: L-ROOT;Comment:distributed using Anycast.
> >> AS42909: as-name:         COMMUNITYDNS;descr:           Internet
> >> Computer Bureau Ltd
> > 
> > 	according to Filip, this is -NOT- supposed to be
> > 	anycast.  the only legal origin ASN is 4555.
> > 
> > 	these other ASNs have hijacked the prefix.
> 
> The source data above may be old, or simply wrong -- I don't see *any* AS originating that prefix right now, and I can confirm specifically AS20144 is not configured to originate it.
> 
> Perhaps I'm misunderstanding the original question, but the assertion that anybody is hijacking that particular prefix seems false.
> 
> 
> Joe

	back in the olden days, this prefix was in active use and for a period of time was anycast.
	methinks Joey was refering to routing -today-...

	one might ask the question, how can you tell when an un-authorized party originates routes
	(yours), from your ASN - their router of course....

/bill




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