RE: [inbox] RE: Bogus DNS traffic
From: David Gillett (gillettdavid_at_fhda.edu)
Date: 10/24/03
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To: <incidents@securityfocus.com> Date: Fri, 24 Oct 2003 08:35:20 -0700
Just to clarify:
When I captured one of these packets, I noticed that the
source MAC address was the same as the address in my ARP cache
for an internal server. That was what I wrote in my initial
description.
Later, I realized that there's an (internal) router between
me and that server, and so of course that MAC address is that of
the router.
So when I wrote my initial note, I thought I was seeing evidence
that the packet had originated within my organization's network.
By the time I wrote my follow-up message, I'd realized that all I
knew was that it probably came from somewhere outside my SUBnet.
Despite the initial error described above, I really DO
know how my routers work. Please stop sending me explanations
of how they work -- especially *incorrect* explanations. That
wasn't my question.
And to reiterate:
Several people have suggested I check
http://people.ists.dartmouth.edu/~gbakos/bindsweep/
I have, and it appears to describe exactly what I'm seeing.
Thank you.
David Gillett
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