On 25 Mar 2021, at 12:00, Ponikierski, Grzegorz via ripe-atlas <ripe-atlas@ripe.net> wrote:

I would add to it additional problem that some hosts obfuscate probe location even more. For example you can find probes which in reality are located in US but are marked as CN or probes which are in reality in Wisconsin but are marked in California. Of course these are extreme cases. I guess most hosts just put a pin with probe location just somewhere around where it's locate as long it's in the same city. I don't remember, as a host of 3 probes, to get any precise recommendations how to mark probe location. Personally I just put a pin in city district where probe is locate.

 

Regards,

Grzegorz

 

From: "Mccherry, Paul (Student)" <p.mccherry@lancaster.ac.uk>
Date: Thursday 2021-03-25 at 11:20
To: "ripe-atlas@ripe.net" <ripe-atlas@ripe.net>
Subject: [atlas] Probe location obfuscation

 

Can anyone confirm the geo-location obfuscation of probes as being up to 1km as per https://atlas.ripe.net/about/faq/#are-the-locations-of-probes-made-public

 

I am a Phd student carrying out research on the RIPE atlas platform and an early result seems to indicate 1 probe has an obfuscation of 10km distance but this may be an anomaly or perhaps something not taken into account as yet.