RE: Internet Connectivity

["Josh Duffek" <consultantjd16 () ridemetro org>]

Did you run a sniffer to get an idea of what all the traffic is?
Curious what, if any, port(s) are being flooded.

J

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Jack Vizelter
Sent: Friday, October 01, 2004 9:56 AM
To: nanog () merit edu
Subject: Internet Connectivity


We had several machines start spewing huge amounts of data causing our
pipe to the public Internet to stop.  We had no traffic coming in or out
of the campus.  We're unsure of whether it's virus related, but wanted
to inquire if anyone else has heard of or came across something similar.
It appears to be an DDOS attack, but, originating from the inside.  This
started last night at about 10pm EST.

Thanks,
-jack