Request for RIPE Atlas Credits for PhD Research on Tor Path Measurements
Dear RIPE Atlas community, My name is Xiaotian Suo, and I am a PhD student at the School of Cyberspace Science and Technology, Beijing Institute of Technology. I am working on a research project studying AS-level exposure and routing asymmetry on Tor client-to-Guard and Exit-to-destination paths. We plan to use RIPE Atlas traceroutes to calibrate and validate data-plane path-inference models. Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test, followed by a paired pilot covering around ten AS-level endpoint pairs in both directions over three measurement rounds. The initial stage should consume fewer than 10,000 credits. If the pipeline works as expected, we would like to expand the study to additional AS pairs, probes, and time windows, and to construct an independent confirmation dataset. For this staged research campaign, I am therefore looking for up to 1,000,000 RIPE Atlas credits. Any partial donation would already be very helpful. Only safe, publicly reachable infrastructure will be used as measurement targets; residential or private end-user addresses will not be targeted. We also intend to make the measurement results available for research reproducibility where possible. My RIPE Atlas account for credit transfers is: xts1774@gmail.com Thank you very much for supporting this research and for maintaining the RIPE Atlas infrastructure. Best regards, Xiaotian Suo PhD Student School of Cyberspace Science and Technology Beijing Institute of Technology
1M credits have been transferred to your account. Good luck. Richard Havern Principle Network Engineer GÉANT Tel: +44 (0) 1223 371398 Networks • Services • People Learn more at www.geant.org<http://www.geant.org/> GÉANT Vereniging (Association) is registered with the Chamber of Commerce in Amsterdam with registration number 40535155 and operates in the UK as a branch of GÉANT Vereniging. Registered office: Hoekenrode 3, 1102BR Amsterdam, The Netherlands. UK branch address: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK. From: xt s <xts1774@gmail.com> Sent: 07 September 2026 09:59 To: ripe-atlas@ripe.net Subject: [atlas] Request for RIPE Atlas Credits for PhD Research on Tor Path Measurements Dear RIPE Atlas community, My name is Xiaotian Suo, and I am a PhD student at the School of Cyberspace Science and Technology, Beijing Institute of Technology. I am working on a research project studying AS-level exposure and routing asymmetry on Tor client-to-Guard and Exit-to-destination paths. We plan to use RIPE Atlas traceroutes to calibrate and validate data-plane path-inference models. Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test, followed by a paired pilot covering around ten AS-level endpoint pairs in both directions over three measurement rounds. The initial stage should consume fewer than 10,000 credits. If the pipeline works as expected, we would like to expand the study to additional AS pairs, probes, and time windows, and to construct an independent confirmation dataset. For this staged research campaign, I am therefore looking for up to 1,000,000 RIPE Atlas credits. Any partial donation would already be very helpful. Only safe, publicly reachable infrastructure will be used as measurement targets; residential or private end-user addresses will not be targeted. We also intend to make the measurement results available for research reproducibility where possible. My RIPE Atlas account for credit transfers is: xts1774@gmail.com<mailto:xts1774@gmail.com> Thank you very much for supporting this research and for maintaining the RIPE Atlas infrastructure. Best regards, Xiaotian Suo PhD Student School of Cyberspace Science and Technology Beijing Institute of Technology
1 million sent as well Colin BT
On 7 Sep 2026, at 09:59, xt s <xts1774@gmail.com> wrote:
Dear RIPE Atlas community,
My name is Xiaotian Suo, and I am a PhD student at the School of Cyberspace Science and Technology, Beijing Institute of Technology.
I am working on a research project studying AS-level exposure and routing asymmetry on Tor client-to-Guard and Exit-to-destination paths. We plan to use RIPE Atlas traceroutes to calibrate and validate data-plane path-inference models.
Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test, followed by a paired pilot covering around ten AS-level endpoint pairs in both directions over three measurement rounds. The initial stage should consume fewer than 10,000 credits.
If the pipeline works as expected, we would like to expand the study to additional AS pairs, probes, and time windows, and to construct an independent confirmation dataset. For this staged research campaign, I am therefore looking for up to 1,000,000 RIPE Atlas credits. Any partial donation would already be very helpful.
Only safe, publicly reachable infrastructure will be used as measurement targets; residential or private end-user addresses will not be targeted. We also intend to make the measurement results available for research reproducibility where possible.
My RIPE Atlas account for credit transfers is:
xts1774@gmail.com <mailto:xts1774@gmail.com> Thank you very much for supporting this research and for maintaining the RIPE Atlas infrastructure.
Best regards,
Xiaotian Suo PhD Student School of Cyberspace Science and Technology Beijing Institute of Technology
----- To unsubscribe from this mailing list or change your subscription options, please visit: https://mailman.ripe.net/mailman3/lists/ripe-atlas.ripe.net/ As we have migrated to Mailman 3, you will need to create an account with the email matching your subscription before you can change your settings. More details at: https://www.ripe.net/membership/mail/mailman-3-migration/
On Mon, Sep 07, 2026 at 04:59:26PM +0800, xt s <xts1774@gmail.com> wrote a message of 88 lines which said:
Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test
Tor uses TCP between nodes, no? Atlas probes can do TCP traceroutes.
My RIPE Atlas account for credit transfers is:
Sent.
Dear all, Thank you very much for your generous credit donations and for supporting my research. I have received the credits, and they will be extremely helpful for the initial traceroute experiments as well as the subsequent validation and replication stages of the study. I really appreciate the support from the RIPE Atlas community. I will use the credits carefully and hope to share useful results from the research once the measurements are completed. Best regards, Xiaotian Suo PhD Student School of Cyberspace Science and Technology Beijing Institute of Technology Stephane Bortzmeyer <bortzmeyer@nic.fr> 于2026年9月7日周一 17:55写道：
On Mon, Sep 07, 2026 at 04:59:26PM +0800, xt s <xts1774@gmail.com> wrote a message of 88 lines which said:
Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test
Tor uses TCP between nodes, no? Atlas probes can do TCP traceroutes.
My RIPE Atlas account for credit transfers is:
Sent.
Sent 5M. Ask for more. -- Sanjeev Gupta +65 98551208 http://www.linkedin.com/in/ghane On Mon, 7 Sept 2026, 16:59 xt s, <xts1774@gmail.com> wrote:
Dear RIPE Atlas community,
My name is Xiaotian Suo, and I am a PhD student at the School of Cyberspace Science and Technology, Beijing Institute of Technology.
I am working on a research project studying AS-level exposure and routing asymmetry on Tor client-to-Guard and Exit-to-destination paths. We plan to use RIPE Atlas traceroutes to calibrate and validate data-plane path-inference models.
Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test, followed by a paired pilot covering around ten AS-level endpoint pairs in both directions over three measurement rounds. The initial stage should consume fewer than 10,000 credits.
If the pipeline works as expected, we would like to expand the study to additional AS pairs, probes, and time windows, and to construct an independent confirmation dataset. For this staged research campaign, I am therefore looking for up to 1,000,000 RIPE Atlas credits. Any partial donation would already be very helpful.
Only safe, publicly reachable infrastructure will be used as measurement targets; residential or private end-user addresses will not be targeted. We also intend to make the measurement results available for research reproducibility where possible.
My RIPE Atlas account for credit transfers is:
xts1774@gmail.com
Thank you very much for supporting this research and for maintaining the RIPE Atlas infrastructure.
Best regards,
Xiaotian Suo PhD Student School of Cyberspace Science and Technology Beijing Institute of Technology ----- To unsubscribe from this mailing list or change your subscription options, please visit: https://mailman.ripe.net/mailman3/lists/ripe-atlas.ripe.net/ As we have migrated to Mailman 3, you will need to create an account with the email matching your subscription before you can change your settings. More details at: https://www.ripe.net/membership/mail/mailman-3-migration/
Hi Xiaotian Suo, 5M credits sent! Cheers, Jacomo On Mon, Sep 7, 2026 at 12:57 PM Sanjeev Gupta <ghane0@gmail.com> wrote:
Sent 5M.
Ask for more.
-- Sanjeev Gupta +65 98551208 http://www.linkedin.com/in/ghane
On Mon, 7 Sept 2026, 16:59 xt s, <xts1774@gmail.com> wrote:
Dear RIPE Atlas community,
My name is Xiaotian Suo, and I am a PhD student at the School of Cyberspace Science and Technology, Beijing Institute of Technology.
I am working on a research project studying AS-level exposure and routing asymmetry on Tor client-to-Guard and Exit-to-destination paths. We plan to use RIPE Atlas traceroutes to calibrate and validate data-plane path-inference models.
Our initial experiment is deliberately small. We plan to run approximately 20 one-off IPv4 ICMP traceroutes as a smoke test, followed by a paired pilot covering around ten AS-level endpoint pairs in both directions over three measurement rounds. The initial stage should consume fewer than 10,000 credits.
If the pipeline works as expected, we would like to expand the study to additional AS pairs, probes, and time windows, and to construct an independent confirmation dataset. For this staged research campaign, I am therefore looking for up to 1,000,000 RIPE Atlas credits. Any partial donation would already be very helpful.
Only safe, publicly reachable infrastructure will be used as measurement targets; residential or private end-user addresses will not be targeted. We also intend to make the measurement results available for research reproducibility where possible.
My RIPE Atlas account for credit transfers is:
xts1774@gmail.com
Thank you very much for supporting this research and for maintaining the RIPE Atlas infrastructure.
Best regards,
Xiaotian Suo PhD Student School of Cyberspace Science and Technology Beijing Institute of Technology
----- To unsubscribe from this mailing list or change your subscription options, please visit: https://mailman.ripe.net/mailman3/lists/ripe-atlas.ripe.net/ As we have migrated to Mailman 3, you will need to create an account with the email matching your subscription before you can change your settings. More details at: https://www.ripe.net/membership/mail/mailman-3-migration/
----- To unsubscribe from this mailing list or change your subscription options, please visit: https://mailman.ripe.net/mailman3/lists/ripe-atlas.ripe.net/ As we have migrated to Mailman 3, you will need to create an account with the email matching your subscription before you can change your settings. More details at: https://www.ripe.net/membership/mail/mailman-3-migration/
participants (6)
-
Colin Johnston -
Jacomo DB Piccolini -
Rick Havern -
Sanjeev Gupta -
Stephane Bortzmeyer -
xt s