January 2021 - ripe-atlas - mailman.ripe.net

Requesting Credits for Research
by Alex Gamero-Garrido 29 Jul '23

29 Jul '23

Hi folks, My name is Alexander Gamero-Garrido and I'm a 5th year PhD student at CAIDA, UC San Diego. We're soon launching a large traceroute campaign for research and could use your generous donation of credits. We'll need about 150 million credits, but any partial amount that gets us closer to that goal is welcome and greatly appreciated. My account is agamerog at eng.ucsd.edu Thank you, Alex -- *Alex Gamero-Garrido* *PhD Student, Computer Science* Web: cseweb.ucsd.edu/~agamerog Center for Applied Internet Data Analysis (CAIDA) San Diego Supercomputer Center UC San Diego Pronouns: He/Him/His <https://inboxwhenready.org/?utm_campaign=signature&utm_medium=email&utm_sou…> I'm using Inbox When Ready <https://inboxwhenready.org/?utm_campaign=signature&utm_medium=email&utm_sou…> to protect my focus.

13 15

Probe DHCPv6 support
by Aleksi Pirttimaa 19 May '23

19 May '23

Hi! I recently received my v4 probe and I'm very happy with it. But unfortunately it doesn't support DHCPv6. I present a practical reason for implementing a DHCPv6 client on the probe. You see, my ISP doesn't send router advertisements with the prefix for stateless autoconfiguration set, and instead DHCPv6 must be used. I believe their decision could have something to do with the fact that the regulating body here requires ISP's to prevent IP address spoofing in consumer plans. And to meet that requirement my ISP may be using a feature similar to Cisco's IP source guard, where switch ports and/or mac addresses are passively associated to leased ip's or prefixes, breaking SLAAC. Unfortunately they hate letting consumers talk with their engineers so it's difficult to speculate this further. For now, I've put a stateful firewall appliance in front of the probe which provides SLAAC, it works just fine. Do you think a DHCPv6 client should be implemented?

8 13

Request for credits for research
by Mohan, Nitinder 20 Apr '21

20 Apr '21

Dear RIPE community, I hope you are all safe and sound. I am a Postdoctoral fellow at the Technical University of Munich, Germany. We are currently working on an ongoing research project which aims to analyze the availability and reachability of cloud data centers globally. The first work of our work will appear in ACM HotNets 2020 titled "Pruning Edge Research with Latency Shears" (http://conferences.sigcomm.org/hotnets/2020/program.html). We are currently preparing the camera-ready version of the paper and will share it with the community by hosting it (and the associated dataset) publicly soon. We are currently planing to submit the second leg of our work to a conference with submission deadline a month. In order to complete all set of measurements for required analysis, we are scheduling very large-scale measurements over the platform which has burned through almost all our credits and left us in need. I have always found the RIPE Atlas community to be helpful and generous towards research and I am hoping that you could support our research by donating us some of your spare credits. Your help will be highly appreciated. My RIPE account is nitinder.mohan(a)helsinki.fi Thanks and Regards Nitinder Mohan Postdoctoral Fellow Technical University of Munich, Germany <http://www.cs.helsinki.fi/u/nmohan/>https://www.nitindermohan.com/

15 18

atlas probe down : ID 35603
by MAYER Hans 08 Feb '21

08 Feb '21

Dear All, Our Atlas probe with ID 35603 is down since about 6 days. It’s a V3 probe. Model: TL-MR3020(UN) Ver: 1.9 ; S/N: 2176197008302. When I realised it this atlas probe was not ping-able. ( due to a power outage ) I followed the instructions https://labs.ripe.net/Members/philip_homburg/troubleshooting-ripe-atlas-pro… with solution 1. Unfortunately it didn’t work. During the time without USB stick the probe was on the network reachable, getting the IP from DHCP. But later on, it wasn’t ping-able. So I tried solution 2. I took a different USB stick as described. After a while the probe is now ping-able. ( 2001:628:21f0:911:c225:e9ff:fea8:6530 , 147.125.100.34 , DNS name: ripencc.iiasa.ac.at<http://ripencc.iiasa.ac.at> ) But when I go to https://atlas.ripe.net/probes/35603/ I see it is offline. The web page says „no flash drive“ and „trying to connect“. What else can I do ? It seems, that the TP-Link device itself isn’t broken. Shall I try with a different USB stick. (a third one) I took a 64MB USB stick. Was this maybe too big ? I saw the original stick had only 1 MB. The documentation says it should have at least 4GB. Any ideas ? Any feedback is welcome. Kind regards Hans -- Ing. Dipl.-Ing. Hans Mayer Systems Analyst Network Unix Security Team (NUST) Information and Communication Technologies (ICT) International Institute for Applied Systems Analysis (IIASA) Schlossplatz 1 A-2361 Laxenburg, Austria Phone: +43 2236 807 Ext 215 Mobile: +43 676 83 807 215 Web: http://www.iiasa.ac.at E-Mail: hans.mayer(a)iiasa.at<mailto:hans.mayer@iiasa.at> Note: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it.

2 6

querying the config
by Randy Bush 04 Feb '21

04 Feb '21

howdy so i wanted info about a probe's config, specifically what dns resolver(s) it is using. i could not figure out how to do this. assuming it was a lack of clueons, i asked a friend with far deeper atlas fu. they said such queries are not available. really? [ yes we have bright ideas on how to discover this indirectly by mining past data ] but really? randy

5 6

Measuring reachability query
by Hank Nussbacher 27 Jan '21

27 Jan '21

2 1

atlas streaming data broken?
by Teun Vink 20 Jan '21

20 Jan '21

Hi, RIPE Atlas API streams seem to have broken down today at ~12.05h CET. Is this a known problem? Best regards, -- Teun Vink BIT | teun(a)bit.nl | +31 318 648 688 KvK: 09090351 | GPG: 0xFC8B25D6 | RIPE: TEUN-RIPE

4 8

"Ripe Atlas > Measurements, Maps and Tools > Tools" web portal not working?
by chris lee 12 Jan '21

12 Jan '21

Hi, Not sure am I missing something , as all the tools links under https://atlas.ripe.net/measurements-and-tools/tools/ don't seem to be working. It just stays on the same landing page when clicked. Thx, Chris Lee

2 1

Automating software probe creation?
by Steve Gibbard 04 Jan '21

04 Jan '21

I’m working on creating some Raspberry Pi-based software probes, to put in some networks that currently lack Atlas probes. I’d like to have a standard image that can come up and work wherever an individual probe lands, instead of needing to configure each one separately. As far as I can tell from the documentation, it looks like the probes are identified by the encryption keys in /var/atlas-probe/etc/probe-key* . If creating new probes from an image, is it sufficient to make each probe generate its own encryption keys, or are there other files that need to change? For registering the probes, I see a web form that requires being logged into a RIPE account, and don’t see any equivalent in the API documentation. Is there a way to register new software probes via the API? Thanks, Steve

7 9