Hi, we are a team of researchers from TU Berlin [1] working on a measurement project to assess the ramifications of traffic with spoofed source IP addresses in the Internet. To better understand the operational challenges that you as network operators face when deploying (or not deploying) source IP address filtering techniques, we'd like to invite you to participate in our survey. If you could spare 5 minutes of your time, we'd be delighted if you could fill out our survey form and tell us about your current practices regarding network filtering. To participate, please visit: [2] http://filteringsurvey.inet.tu-berlin.de/ If you have any concerns or questions, you can reply on-list or contact us via [3] filtering-survey@inet.tu-berlin.de. We will only publish anonymized results of this study and once we've analyzed your feedback we'll publish a digest of the results on-list if you're interested. As you are probably subscribed to more network operator lists you might encounter this mail multiple times. We apologize for cross-posting, but in order to get results that will give us meaningful insights we need the broadest coverage we can get. Thank you very much for your support! Franziska Lichtblau [1] www.inet.tu-berlin.de [2] http://filteringsurvey.inet.tu-berlin.de/ [3] filtering-survey@inet.tu-berlin.de -- Franziska Lichtblau, M.A. building MAR, 4th floor, room 4.004 Fachgebiet INET - Sekr. MAR 4-4 phone: +49 30 314 757 33 Technische Universität Berlin gpg-fp: 4FA0 F1BC 8B9A 7F64 797C Marchstrasse 23 - 10587 Berlin 221C C6C6 2786 91EC 5CD5