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New on RIPE Labs: Reasons Dynamic Addresses Change
by Mirjam Kuehne 29 Nov '16

29 Nov '16

Dear colleagues, Please find this new article on RIPE Labs by Ramakrishna Padmanabhan: Reasons Dynamic Addresses Change Rama looked at why dynamic addresses change and found ISPs that renumber periodically, most commonly every 24 hours or a multiple of 24 hours. He also found that outages influence address changes. RIPE Atlas was used for the measurements. https://labs.ripe.net/Members/ramakrishna_padmanabhan/reasons-dynamic-addre… Kind regards, Mirjam Kuehne RIPE NCC

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Fifteen new RIPE Atlas anchors have joined the community
by Michela Galante 24 Nov '16

24 Nov '16

Dear colleagues, Fifteen new RIPE Atlas anchors have been activated since our last announcement in September, bringing the total number to 231: - us-bos-as26167, hosted by Markley Group in Boston, United States (IPv4-only anchor) - us-pct-as88, hosted by Princeton University in Princeton, United States (IPv4-only anchor) - tz-dar-as327844, hosted by Tanzania ISP Association in Dar es Salaam, Tanzania and ke-nbo-as37578, hosted by TESPOK in Nairobi, Kenya. These are the first two of five anchors that ISOC will sponsor. - dk-aal-as9158 and dk-cph-as9158, hosted by Telenor Denmark A/S in Aalborg and Copenhagen, Denmark - au-syd-as135150, hosted by bet365 in Sydney, Australia - ca-wnp-as16395, hosted by asn16395 in Winnipeg, Canada - us-ljl-as195, hosted by Center for Applied Internet Data Analysis (CAIDA) at the University of California, San Diego in La Jolla, United States - nz-akl-as38064, hosted by NZ Registry Services in Auckland, New Zealand - us-bos-as111, hosted by the Boston University in Boston, United States - kw-kwi-as42961, hosted by Zain Kuwait in Kuwait City, Kuwait - nl-ede-as12859-client, hosted by HCC in Ede, Netherlands - it-rom-as24796, hosted by NaMeX Consortium in Rome, Italy - us-fcn-as32934, hosted by Facebook in Forest City, United States. You can find the full list of anchors, a map of their locations, a list of the hosting organisations and more information about RIPE Atlas anchors online: https://atlas.ripe.net/anchors/list/ Interested in hosting a RIPE Atlas anchor? Learn more: https://atlas.ripe.net/get-involved/become-an-anchor-host/ We are particularly interested in deploying anchors in the Middle East, Western Asia, Latin America and Africa in order to add more geographical diversity to the measurement data. There are several organisations that want to host a RIPE Atlas anchor but don’t have the necessary funding. To learn more about sponsoring an anchor, or for any other questions, please contact us at atlas(a)ripe.net And don’t forget to let us know if you’re doing something interesting with RIPE Atlas data - we always want to hear about your use cases, research and experiences! Regards, Michela Galante RIPE NCC

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New on RIPE Labs: Large BGP Communities - Largely Accepted Now?
by Mirjam Kuehne 11 Nov '16

11 Nov '16

Dear colleagues, Large BGP Communities are an addition to BGP that solves a communication problem between networks that want to use 32-bit AS Numbers. We measured how Large BGP Communities behave "in the wild" and if they create any problems. Please find the results on RIPE Labs: https://labs.ripe.net/Members/emileaben/large-bgp-communities-largely-accep… Kind regards, Mirjam Kuehne RIPE NCC

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Ethical considerations
by Robert Kisteleki 07 Nov '16

07 Nov '16

Dear All, As mentioned in my RIPE Atlas update during the RIPE 73 MAT working group, we'd like to draw RIPE Atlas users’ attention to relevant ethical considerations. We've just published a RIPE Labs article about this: https://labs.ripe.net/Members/kistel/ethics-of-ripe-atlas-measurements/ Regards, Robert Kisteleki RIPE NCC

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New on RIPE Labs: A Practical Comparison Between RIPE Atlas and ProbeAPI
by Mirjam Kuehne 25 Oct '16

25 Oct '16

Dear colleagues, Please find this new article on RIPE Labs contributed by Cristian Varas: A Practical Comparison Between RIPE Atlas and ProbeAPI https://labs.ripe.net/Members/cristian_varas/a-practical-comparison-between… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: A Quick Look at the Attack on Dyn
by Mirjam Kuehne 24 Oct '16

24 Oct '16

Dear colleagues, We used a number of RIPE NCC tools and data sets to take a quick look at the recent DDoS attack on Dyn’s infrastructure. We wanted to see if this could be found in the data produced by the RIPE Atlas community. Please see on RIPE Labs: https://labs.ripe.net/Members/massimo_candela/a-quick-look-at-the-attack-on… Kind regards, Mirjam Kuehne RIPE NCC

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MAT Draft Agenda V2.0 for RIPE73
by Christian Kaufmann 24 Oct '16

24 Oct '16

Hello All, This is the updated draft agenda for the Measurement, Analysis and Tools Working Group session at RIPE73: A. Introduction: Welcome, Scribe, Jabber, Agenda - 5m B. Wireless Performance Measurement and Verification Using the end-user mobile device feedback - Anna Wilson - 20 min C. What’s hiding behind IPv6 extension headers? - Luuk Hendriks - 15 m D. RIPE ATLAS update - Robert Kisteleki - 10 m E. Add system tag for the probes behind "nanny filter" - Remco van Mook - 5 min F. Country Topology map Using Atlas - Sebastian Castro - 15 min G. Speed checker comparison with Atlas - Janusz Jezowicz - 15 min Z. AOB Timings are approximate:-) The session will take place at 15:00 local time on Wednesday 26th October. See you in Madrid! Nina and CK MAT WG Chairs

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New on RIPE Labs: Orange Blacklisting: A Case for Measuring Censorship
by Mirjam Kuehne 19 Oct '16

19 Oct '16

Dear colleagues, Please find a short a article on measuring censorship on RIPE Labs: https://labs.ripe.net/Members/stephane_bortzmeyer/orange-blacklisting-a-cas… Kind regards, Mirjam Kuehne RIPE NCC

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Shall we continue non-public measurements in RIPE Atlas?
by Mirjam Kuehne 18 Oct '16

18 Oct '16

Dear colleagues, "Non-public measurements" is a feature of RIPE Atlas that allows users to use the infrastructure to measure things while not sharing those results with the public. Is that still a useful feature? Should it exist in the future? For more details, see this new post on RIPE Labs: https://labs.ripe.net/Members/kistel/non-public-measurements-in-ripe-atlas Please also take the polls at the end of the article. Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: What Can You Do with One Million RIPE Atlas Credits?
by Mirjam Kuehne 12 Oct '16

12 Oct '16

Dear colleagues, Ever wondered what to do with all those RIPE Atlas credits you earned? Find out on RIPE Labs how you can best spend your credits to check your services' connectivity and troubleshoot potential issues. https://labs.ripe.net/Members/becha/what-can-you-do-with-one-million-ripe-a… Kind regards, Mirjam Kuehne RIPE NCC

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