[Dshield] Concentric / XO

IT Department - CI Holding Group, Inc. it at ciholding.com
Mon Jul 8 17:52:50 GMT 2002

You didn't hear it from me:

Abuse Dept:
Jason -> (jason at abuse.cnchost.com)
Abuse at xo.com
Tech Support: (888) 575-6398 (Option 1, 4), then ask for ABUSE

At 01:13 PM 7/6/2002 +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?

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