[Dshield] Concentric / XO

millerbn millerbn at chiba.dhs.org
Sat Jul 6 18:32:59 GMT 2002

Contact Jim Tobias jtobias at xo.com with the relevant information. Otherwise you will need to block their IP space.

On Sat, 6 Jul 2002 13:13:51 +0200, you wrote:

>I am receiving loads of open relay scans from concentric.net / xo.com
>netblocks. Contacted their abuse department five times last week but the
>intensity of the scans only goes up when I do so, and I never get any reply.
>Anyone has similar experiences with these people? Am I wasting energy?
>Oh, the scanning IPS are*.
>Anyone know what to do about these guys. What is the best way to stop them,
>apart from blocking the IP range?
>  Pieter-Bas

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