At the bottom of one of their pages it says this: If you would like us to not scan your network, please let us know and we will remove your networks from the scan. Likewise, if you have anymore questions please feel free to send us an email at: dnsscan [at] shadowserver [dot] org. They are quite responsive to questions. Frank -----Original Message----- From: Joe [mailto:jbfixurpc@gmail.com] Sent: Monday, March 31, 2014 9:51 PM To: NANOG Subject: Just wondering Pardon for the ignorance regarding this. If folks can point me to something I may have missed as a participant for over 14 years, to powering this Alzheimers. I received several reports today regarding some scans for udp items from shadowservers hosted out of H.E. Seems to claim to be checking for issues regarding udp issues, amp issues, which I am all fine for, but my issue is this. It trips several IDP/IPS traps pretty much causing issues that I have to resolve. I have one user that is a home user (outside one of my /16) that has seen this as well. Now with that said are these folks that do this going to pay for one of my users that pay per bit for this? Does garbage in to this really provide a garbage clean? I see they are planing on a bunch of other protocols too, so that's nice. I'm not sure where to go with this other than to advise my other folks to drop this traffic from their 184.105.139.64/26 networks and hope for the best regarding my FAP folks. Regards, -Joe