Like Paul said below - On the surface it looked legit. I received a notice indicating my AS had done some wrong and that I should correct the issue. Of course I am going to investigate - Maybe I fat fingered something or one of my tech had done something like not clearing the code of a lab router when connecting it to the production network. Or....Maybe there was something nefarious going. When I attempted to contact the source of the notice and inform them that I was not hijacking IP space the message bounced. I did look up the owner of the netblock. I saw that it was an experimental range. I sent an email to Randy (sorry for the fire storm that followed) but did not receive a response. Being the reformed juvenile delinquent I am, my line of thought went to "Hm...Someone could be up to no-good. I better find out more." I could have chosen to ignore it and say "WTF, I'm not doing anything wrong. Why should I care?". Instead I chose to ask my peers, many of whom are much more knowledgeable than I am, because I feel as network engineers, administrators, and router-jocks, it is our responsibility to safe-guard internet traffic and insure reliable communication when we can. /My $.02 - Michienne Dixon Network Administrator liNKCity 312 Armour Rd. North Kansas City, MO 64116 www.linkcity.org (816) 412-7990 -----Original Message----- From: Paul Stewart [mailto:pstewart@nexicomgroup.net] Sent: Tuesday, January 13, 2009 2:52 PM To: Joe Abley; Patrick W. Gilmore Cc: NANOG list Subject: RE: Anyone notice strange announcements for 174.128.31.0/24 Ummmmm.. no. I can't speak for the others on this list who were effected like us - but we take this stuff very seriously and respectively you would too *if* you had a previous legit issue that appeared to the same **on the surface**. A cautious and indepth look at this was taken upon us hoping that history wasn't repeating itself (previously explained) and thankfully it wasn't ... but until the time is spent to make absolutely sure how do you know?? At the end of the day, it wasn't a serious operational issue but raised a number of concerns I believe.... Paul