Mirjam Kühne
Based in Amsterdam, The Netherlands
112
Articles
197
Likes on articles
Based in Amsterdam, The Netherlands
I wrote the articles collected here during my time as community builder of the RIPE NCC and the maintainer and editor of RIPE Labs. I have since taken on a new role serving as the Chair of the RIPE Community. You can reach my new profile via the website link below.
Introducing the RIPE NCC Roadmap
• 3 min read
We often get asked about the status of our different services and projects, and while we frequently publish updates on RIPE Labs, we now have a new tool that makes it easier to stay informed. We're happy to announce the RIPE NCC Roadmap, where you can get an overview of all the latest developments …
Mediterranean Cable Disruption as Seen in RIPEstat
• 2 min read
What RIPEstat tells us about the recent cable disruption in the Mediterranean.
SI6 IPv6 Toolkit v1.3.1 Released
• 3 min read
This IPv6 Toolkit allows you to perform security assessments and trouble-shooting of your IPv6 network. A new version has been released recently.
An Update on De-bogonising 128.0.0.0/16
• 4 min read
We continued RIPE Atlas measurements to see if we can still find cases where 128.0.0.0/16 is filtered out.
Mozilla Uses RPKI
• 3 min read
A few weeks ago, Mozilla started to use RPKI (Resource Public Key Infrastructure) and ROAs (Route Origin Authorization). Here is a quick introduction.
RIPE NCC Training Report 2012
• 5 min read
This article gives an overview of our training activities in 2012 and an outlook on our plans for 2013.
Survey on Network Attack Detection and Mitigation
• 2 min read
The Biometrics and Internet Security Research Group at the University Darmstadt is conducting a survey on network attack detection and mitigation in order to gain a deeper insight in processes, procedures and settings typically found in ISP networks.
IPv6 Darknet Experiment
• 2 min read
Similar to an experiment done for IPv4 address space, Merit is now performing a darknet experiment with the IPv6 ranges that have been allocated to the RIRs. This also includes prefixes allocated to the RIPE NCC.
Number of New LIRs and their IPv6 RIPEness
• 3 min read
We observed an increase in the number of new LIRs in the RIPE NCC service region. Many of these new LIRs show 1-star IPv6 RIPEness.
“Hi Mirjam, have you got any updates by now?”
Hi John, we have published a couple of updates in the meantime. Please see: https://labs.ripe.net/Members/emileaben/has-the-routability-of-longer-than-24-prefixes-changed and https://labs.ripe.net/Members/stephen_strowes/bgp-even-more-specifics-in-2017
“I believe the caption for fig 2 should actually read "Figure 2: Amsterdam power outage on 17 January 2017", not 2014.”
Hi Alison, thanks for pointing this out. You are right. We corrected it in the article.
“I wish to use the dataset of NLANR for my thesis, about analyzing the flow pattern. Would you email me the download link address at hnldtlw@126.com Thank you so much.”
Dear Longwei Tian, Many thanks for your interest in the dataset. Please see the description above. Under Data Users, it is explained how you can access the data. You need to create a RIPE NCC Access account and accept the Terms and Conditions. Please let us know if you have any problems.
“Hiya, great write up...! Feel free to delete this comment once read, but just wondering if you'd consider linking the word "iNOG" in the blogpost to https://inog.net so people can potentially find us to get involved in either day to day, events, or a prospective hackathon as mentioned :) Thanks a mil, Donal @inognet https://inog.net”
Of course. Good idea. Thanks, Donal.
“Hi, my probe #19242 is disconnected to day, after "usb stick dancing" still say disconnected, in SOS messages are this message: BADMD-APP-4780-d41d8cd98f00b204e9800998ecf8427e What's wrong? Thank you David”
Dear David, we will create a support ticket for you and will get back to you by email.
“You're right the right text should be: Let’s suppose a customer provisioned in the first stage with the prefix 2001:db8:1111::/48. Their devices are using, for our example, the first free /64 (2001:db8:1111:1::/64). Everything is fine until there is a power outage. The CPE boots up again when power is recovered, and because the ISP is using a non-persistent prefix, a new prefix is assigned (2001:db8:2222::/48), so now the CPE is announcing 2001:db8:2222:1::/64. However, the devices that have battery (laptops, tablets, smartphones) still have the previous prefix, so now they have two different prefixes (2001:db8:1111:1::/64 and 2001:db8:2222:1::/64). These devices will try to keep using the older one, and they will not work, as the ISP is no longer routing the first prefix to that customer. Just think: if another network failure or power outage were to happen now. Devices could then have three or even more prefixes. And the user will end up calling the ISP help-desk for troubleshooting because the network is not working. Regarding privacy, at the end the best way someone willing to track you has is apps fingerprinting and correlating data, not just addresses. Because the "tracker" can not be sure that it is the same "person" even if the address is the same, it may be several users in the same computer, it may be different computers using the same address at different times, etc.”
This has been replaced in the original text in order to avoid confusion.
“Have to love those early days. RIPE and the RIPE NCC have made a very significant impact on what now seems so normal and common... Wish all of you (us?) a happy 25th birthday!”
Hi Marten, nice to hear from you. Wish you would be here with us to celebrate!
“Hello, Thanks for this informative article. One question: Why does the route6 object explanation contains a v4 example (in the screenshot)? Best regards.”
Hi Raymond, Very good point. We included a different example now. And sorry for the delay - this totally slipped my mind.
“Was using wget --user=****** --password=****** https://data-store.ripe.net/datasets/iplane-traceroutes/2016/traces_2016_08_15.tar.gz downloads ~58kb tar file whereas the file is 836M. Am I doing something wrong?”
Dear Sagnik, it is not possible to use wget with username and password. You need to log in to RIPE NCC Access which will set a cookie, then save the cookie in a file and tell wget to use it. I hope this helpw.
Someone posted a comment here yesterday asking: "Do you have a list of worthwhile testers who might put my surplus credits to good use?" Unfortunately I accidentally deleted this comment so I am re-posting it.
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