nanog mailing list archives

RE: Hijacked Network Ranges


From: George Bonser <gbonser () seven com>
Date: Wed, 1 Feb 2012 04:10:32 +0000



-----Original Message-----
From: John Schneider
Sent: Tuesday, January 31, 2012 5:34 PM
To: Kelvin Williams
Subject: Re: Hijacked Network Ranges

Another interesting thing that I noticed, is that AS33611 is not
advertising any prefixes other than yours.  Either they do not have any
of their own (unlikely) or they are advertising their own legitimate
prefixes from another AS however I doubt that is the case.  It sounds
like you were able to verify that this is indeed a malicious attack. 

If I read the previous material correctly, it seems to have gone something like:

Customer was initially a customer of Kelvin's firm and had the address assignments in question.

Customer relationship with Kelvin's firm terminated and they contracted for service elsewhere but are apparently 
attempting to maintain the use of the address allocation(s) they received from Kelvin's firm.  They apparently did this 
by misrepresenting the fact that they were entitled to use that address space.

If that is the case, it isn't so much a "malicious attack" as it is just plain stealing the use of IP address space 
they aren't entitled to.



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