nanog mailing list archives

Re: isprime DOS in progress


From: Aaron Hopkins <lists () die net>
Date: Wed, 21 Jan 2009 10:21:23 -0800 (PST)

On Wed, 21 Jan 2009, Phil Rosenthal wrote:
This attack has been ongoing on 66.230.128.15/66.230.160.1 for about 24 hours now, and we are receiving roughly 5Gbit of attack packets from roughly 750,000 hosts.

I'm only receiving NS queries for "." from spoofed 66.230.128.15 and
66.230.160.1 via above.net (of my three transit providers) and none from
peering.  This usually indicates a single source, such as one rooted machine
on non-BCP38 net spewing most of a gigabit.

Given the attack is still in progress, I can't really say much more publicly, but suffice to say, we're working on the situation.

Have you had any luck tracking back the source of the spoofed packets?    If
me talking to above.net sounds useful, let me know.

                                    -- Aaron


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