Dear All, Looking at the result of a traceroute measurement I see very often that first hop has a RFC1918 address. These days a found a result where the first 3 hops are showing something like 192.168.x.y Of course this could falsify the result especially for response time. Is there a way to select only Atlas probes which are located in non RFC1918 networks ? If not it would be nice to have such a possibility. Kind regards Hans -- Ing. Dipl.-Ing. Hans Mayer Systems Administrator 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.at E-Mail: mayer@iiasa.ac.at Atlas probe: 35603 Note: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it.
On May 22, 2019, at 8:40 AM, Mayer Hans <Hans.Mayer@iiasa.ac.at> wrote:
Dear All,
Looking at the result of a traceroute measurement I see very often that first hop has a RFC1918 address. These days a found a result where the first 3 hops are showing something like 192.168.x.y Of course this could falsify the result especially for response time. Is there a way to select only Atlas probes which are located in non RFC1918 networks ? If not it would be nice to have such a possibility.
I think you’re speaking of just using the anchors? - Jared
Dear Jared,
... I think you’re speaking of just using the anchors?
Actually not. We are owner of Atlas probe: 35603 When I setup a new measurement I am asked to enter a number of probes. So I assume only probes are used for my measurement. Isn't it ? // Hans -----Original Message----- From: Jared Mauch <jared@puck.nether.net> Sent: Wednesday, May 22, 2019 3:31 PM To: Mayer Hans <Hans.Mayer@iiasa.ac.at> Cc: ripe-atlas@ripe.net Subject: Re: [atlas] RFC1918 probes
On May 22, 2019, at 8:40 AM, Mayer Hans <Hans.Mayer@iiasa.ac.at> wrote:
Dear All,
Looking at the result of a traceroute measurement I see very often that first hop has a RFC1918 address. These days a found a result where the first 3 hops are showing something like 192.168.x.y Of course this could falsify the result especially for response time. Is there a way to select only Atlas probes which are located in non RFC1918 networks ? If not it would be nice to have such a possibility.
I think you’re speaking of just using the anchors? - Jared
On 2019-05-22 14:40, Mayer Hans wrote:
Dear All,
Looking at the result of a traceroute measurement I see very often that first hop has a RFC1918 address. These days a found a result where the first 3 hops are showing something like 192.168.x.y Of course this could falsify the result especially for response time. Is there a way to select only Atlas probes which are located in non RFC1918 networks ? If not it would be nice to have such a possibility.
Kind regards Hans
Hi, When you set up your measurement, you can exclude probes that are tagged with IPv4 RFC1918 (system-ipv4-rfc1918). Regards, Robert
Dear Robert, Many thanks for coming back so quickly. Just to verify that I understood correctly: When I open "Create your selection" then I should enter the word " system-ipv4-rfc1918" in field "exclude tags". Is that what you are saying ? Kind regards Hans -- -----Original Message----- From: Robert Kisteleki <robert@ripe.net> Sent: Wednesday, May 22, 2019 3:38 PM To: Mayer Hans <Hans.Mayer@iiasa.ac.at>; ripe-atlas@ripe.net Subject: Re: [atlas] RFC1918 probes On 2019-05-22 14:40, Mayer Hans wrote:
Dear All,
Looking at the result of a traceroute measurement I see very often that first hop has a RFC1918 address. These days a found a result where the first 3 hops are showing something like 192.168.x.y Of course this could falsify the result especially for response time. Is there a way to select only Atlas probes which are located in non RFC1918 networks ? If not it would be nice to have such a possibility.
Kind regards Hans
Hi, When you set up your measurement, you can exclude probes that are tagged with IPv4 RFC1918 (system-ipv4-rfc1918). Regards, Robert
On 2019-05-22 15:46, Mayer Hans wrote:
Dear Robert,
Many thanks for coming back so quickly. Just to verify that I understood correctly: When I open "Create your selection" then I should enter the word " system-ipv4-rfc1918" in field "exclude tags". Is that what you are saying ?
Kind regards Hans
It depends on whether you're using the UI or the API. The UI indeed has that dialog where you can include or exclude tagged probes. Suggestions should also work so typing "1918" also should get you there. Don't forget to remove the default "any 10 probes" default. Regards, Robert
participants (3)
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Jared Mauch -
Mayer Hans -
Robert Kisteleki