May 2016 - ripe-atlas - mailman.ripe.net

SixXS issues
by Alison Wheeler 11 May '16

11 May '16

I received my second probe* yesterday (different ASNs) and it is connects via SixXS for IPv6 as the ISP isn't supplying native v6 (despite repeatedly asking when they will catch up on something around for twenty years!). It booted fine and the appear no issues with the IPv4 connectivity but the v6 is going up and down every few minutes (for around the same period.) Not finding anything relevant after searching the forum (nor on google) I'm trying to discover why this might be. My other machines are not experiencing any difficulty with v6 connectivity and the probe is connected to the same 16-port switch as everything else. Suggestions of what to investigate next very welcome! * https://atlas.ripe.net/probes/28800/ Sent via RIPE Forum -- https://www.ripe.net/participate/mail/forum

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New on RIPE Labs: Using RIPE Atlas to Debug Network Connectivity Problems
by Mirjam Kuehne 10 May '16

10 May '16

Dear colleagues, Please find this new article by Stéphane Bortzmeyer on RIPE Labs where he explains how he used RIPE Atlas probes, the official RIP Atlas API and custom scripts, to debug network issues: https://labs.ripe.net/Members/stephane_bortzmeyer/using-ripe-atlas-to-debug… Kind regards, Mirjam Kuehne RIPE NCC

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LatencyMON Widget Y axis in milliseconds
by Marat Khalili 10 May '16

10 May '16

I'm using LatencyMON <https://atlas.ripe.net/docs/tools-latencymon/> widget to monitor my network performance. It's very convenient. Unfortunately, it always loads with latency shown in %% (of what?), not in milliseconds, so I have to make one extra click in order to view actual milliseconds. Is there some hidden switch that would make milliseconds the default? Shouldn't it be initially default in the first place? -- With Best Regards, Marat Khalili

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ping measurements and high lts
by Clinton Work 10 May '16

10 May '16

When looking at the ping measurement json results I found some probes are reporting a very high lts (last time synchronized). Is it normal for very high lts values to be reported? These two anchors seem chronic: Probe 6161, max lts 65807 Probe 6132, max lts 23905 ================================= Clinton Work

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UDP Traceroute port?
by Laura M. Roberts 06 May '16

06 May '16

Hello, What port is used when a UDP traceroute is performed, please? Thank you, Laura

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Re: [atlas] DNS entry
by Anthony 02 May '16

02 May '16

Okay thank you for the answer. Should he therefore leave the "OFF"? Le 02/05/2016 17:01, Micha Bailey a écrit : > Essentially, this is a dynamic DNS service bound to the probe. If you > choose "simple" the hostname will be something like > p#####.probes.atlas.ripe.net <http://probes.atlas.ripe.net>, with the > probe number. If you choose "obfuscated", the hostname will be > something else. I don't know exactly what it looks like, but it's > something less identifying. > > On Monday, May 2, 2016, Anthony <contact.anthoo(a)gmail.com > <mailto:contact.anthoo@gmail.com>> wrote: > > Hello, > > In the edition of general probe of my information, I see that > there are marked "DNS" with several choices: OFF, SINPLE or > obfuscated. > > I would have wanted to know what it matched? And what he had to > choose. > > Thank you in advance. >

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DNS entry
by Anthony 02 May '16

02 May '16

Hello, In the edition of general probe of my information, I see that there are marked "DNS" with several choices: OFF, SINPLE or obfuscated. I would have wanted to know what it matched? And what he had to choose. Thank you in advance.

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An article/FAQ entry about probe troubleshooting
by Ondřej Caletka 02 May '16

02 May '16

Hi all, it seems that failing probes are getting more and more to be an issue, possibly due to USB flash drive failure. I think it would be nice if there was an article / FAQ entry with some official troubleshooting procedures, so we could just send a link to anybody complaining about non functional probe. Is there something like this on the roadmap? Perhaps we as the community could make something up: - how to check whether the port probe is connected to has proper IP and DNS parameters and is allowed to establish a SSH session to TCP port 443 in the Internet (beware of DPI firewalls that allow HTTPS but not SSH over 443) - how to check the LED status and the SOS list at the probe page (the current LED explanation in the FAQ is too techy and even power users like me still don't understand all presented states :) ) - how to diagnose USB flash drive failure, how to force reformatting the flash drive and how to replace it with a new one What do you think? Cheers, Ondřej Caletka CESNET

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