July 2020 - 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.

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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?

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Meta-information dumps for built-in measurements?
by Vasileios Giotsas 09 Nov '20

09 Nov '20

Is there any repository like https://ftp.ripe.net/ripe/atlas/measurements/ that contains meta-information about built-in RIPE Atlas measurements (the above repository contains meta-information only for public measurements)? I couldn't find anything similar in the new FTP repository at https://data-store.ripe.net/datasets/atlas-daily-dumps/ I guess using the API is an alternative but it would be more convenient to have such dumps Thanks, Vasileios

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Far remote probe 34512 offline but partially works
by ripe＠brite.cz 27 Jul '20

27 Jul '20

Hi team, I have probe 34512 in distant location [not able to have it checked physically for some more time], it shows offline since 2020-07-21, no SOS messages listed since 2020-05-16. But other devices connected to the same router do work online, and also the router keeps sending me Log Messages via internet so its internet connection has to be working fine. Router log shows DHCP request getting from the Probe every 12 hours, as usually: 2020/07/27 18:51:44 Info 93-153-42-167.customers.tmcz.cz daemon dnsmasq-dhcp DHCPACK(eth1) 192.168.222.220 c0:25:e9:a8:57:96 2020/07/27 18:51:44 Info 93-153-42-167.customers.tmcz.cz daemon dnsmasq-dhcp DHCPREQUEST(eth1) 192.168.222.220 c0:25:e9:a8:57:96 The router itself is behind NAT and I'm not able to remote to it and proceed with further investigation. From the Log above I see the Probe is running and keeps requesting DHCP requests as usually, so not sure how it could show offline. Do you have any further logs or a way how to try to resurrect the Probe remotely? Thank you Jiri

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Anyone with some spare credits for my experiments?
by JJ de Ronde 13 Jul '20

13 Jul '20

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Issue in rendering built in graphs
by Anurag Bhatia 08 Jul '20

08 Jul '20

Hello Seems like something broken at the RIPE backend. Unable to render built-in graphs. I am getting this on any of the probes I check: URL: https://atlas.ripe.net/probes/17011/#!tab-builtins [image: Screenshot 2020-07-07 at 10.30.24 PM.png] Anyone with an idea on what's going around? -- Anurag Bhatia anuragbhatia.com

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probe offline/lock up
by Bryan Fields 06 Jul '20

06 Jul '20

I had an interesting alert yesterday, as my probe 54858 said it was offline. I was unable to ping it from the router port it's directly connected to, but did some some traffic on the port via the counters. There was a fresh ARP entry as well. I power cycled it and it came back online. I was then able to ping it via v4 after it DHCP'd it's address. v6 pings were working to it's SLAAC address too. It has not gone offline now, but I am noticing pings on v4 are not working at all again. v6 seems unaffected. Is this normal or is there a problem with my probe? I've never really taken this close of a look before, I'm unsure if it has an issue or if this is normal. Thanks, -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net

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