- NLNOG - NLNOG

Spoofer Report for NLNOG for Nov 2025
by CAIDA Spoofer Project 08 Dec '25

08 Dec '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Nov 2025: none inferred Source Address Validation issues inferred during Nov 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-11-25 33915 TNF 2019-01-28 2025-11-26 39647 REDHOSTING 2019-12-02 2025-11-27 207176 OPENFIBER 2022-09-30 2025-11-01 3920 IMS-RTFM 2023-10-06 2025-11-27 202585 2025-10-04 2025-11-18 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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NLNOG Nieuwjaarsborrel / New Year's Drink 2026
by Nick Bouwhuis 01 Dec '25

01 Dec '25

Hoi allemaal, hi everyone! Het einde van het jaar nadert, dus is het een mooi moment om de NLNOG Nieuwjaarsborrel aan te kondigen. Net als voorgaande jaren zijn we weer welkom in De Rechtbank in Utrecht, deze keer op vrijdag 30 januari 2026. We hopen jullie allemaal daar te zien om elkaar onder het genot van een drankje en wat borrelhapjes een fantastisch nieuw jaar toe te wensen. We vragen je om je te registreren als je van plan bent om erbij te zijn, zodat we een goed beeld hebben van hoeveel mensen we kunnen verwachten. Toegang en drankjes zijn dankzij al onze fantastische sponsoren natuurlijk helemaal gratis! Nog even de details op een rijtje: Waar: De Rechtbank, Korte Nieuwstraat 14, 3512 NM Utrecht Wanneer: vrijdag 30 januari 2026 vanaf 19.00 uur Entree: gratis, maar wel aanmelden via https://nlnog.net/tickets Mocht je collega’s, (mede-)studenten of andere mensen weten waarvan je denkt dat ze het leuk vinden om ook eens een kijkje te komen nemen, deel deze uitnodiging dan vooral met ze. Ze zijn van harte welkom! We wensen je fijne feestdagen toe en hopen je de 30e in Utrecht te zien. (English) We’re at the end of the year, so it’s time to announce the NLNOG New Year’s Drink! Just like in previous years, we are welcome at De Rechtbank in Utrecht, this time on Friday, January 24th, 2025. We hope to see you all there to wish each other a fantastic new year while enjoying drinks and snacks! If you’re planning on coming, please register so we know how many people we can expect. Attendance and drinks are all free of charge thanks to our amazing sponsors! Here are the details: Where: De Rechtbank, Korte Nieuwstraat 14, 3512 NM Utrecht When: Friday, January 30th, 2026, starting at 19.00h Attendance: free of charge, but please register at https://nlnog.net/tickets If you know any colleagues, fellow students, or other people who you think may be interested in joining us, please share this invitation, they are very welcome! Enjoy the holidays, and we hope to see you on the 24th in Utrecht. See you in court! The NLNOG Board Cas, Niels, Niels, Robert, Nick en Teun

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IANA AS Numbers Registry Update
by David Dong 22 Nov '25

22 Nov '25

Hi, The IANA AS Numbers registry has been updated to reflect the allocation of the following block to LACNIC: 274845-275868 Assigned by LACNIC 2025-11-19 Registry: http://www.iana.org/assignments/as-numbers/ The allocation was made as per the Policy for Allocation of ASN Blocks to Regional Internet Registries: https://www.icann.org/resources/pages/global-policy-asn-blocks-2010-09-21-en Best regards, David Dong IANA Services Sr. Specialist

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Spoofer Report for NLNOG for Oct 2025
by CAIDA Spoofer Project 08 Nov '25

08 Nov '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Oct 2025: ASN Name Fixed-By 202585 2025-10-04 28685 ASN-ROUTIT 2025-10-30 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Oct 2025: ASN Name First-Spoofed Last-Spoofed 33915 TNF 2019-01-28 2025-10-28 39647 REDHOSTING 2019-12-02 2025-10-28 3920 IMS-RTFM 2023-10-06 2025-10-30 202585 2025-10-04 2025-10-04 42755 DATAFIBER 2025-10-08 2025-10-08 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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Spoofer Report for NLNOG for Sep 2025
by CAIDA Spoofer Project 08 Oct '25

08 Oct '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Sep 2025: none inferred Source Address Validation issues inferred during Sep 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-09-30 33915 TNF 2019-01-28 2025-09-26 8587 Infracom 2019-10-28 2025-09-29 39647 REDHOSTING 2019-12-02 2025-09-18 3920 IMS-RTFM 2023-10-06 2025-09-25 39686 ASN-EUROFIBER 2025-04-28 2025-09-22 60893 ARTOFAUTOMATION 2025-09-19 2025-09-19 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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DENOG17 INVITE
by Stefan Funke 01 Oct '25

01 Oct '25

Good afternoon NLNOG! The annual DENOG conference is scheduled to take place in November this year. There are some changes, especially interesting for our neighbors from the Netherlands: DENOG17 will occur in the city of Essen. This is your annual reminder: If you want to attend, be sure to purchase your tickets now before they sell out. The nearest airports are: - Duesseldorf (DUS / EDDL) - Koeln/Bonn (CGN / EDDK) - Dortmund (DTM / EDLW) The nearest train station is: - Essen Hauptbahnhof (Main Station) Our venue is directly at the train station: Haus der Technik (HDT), Hollestrasse 1, 45127 Essen, Germany https://www.denog.de/de/meetings/denog17/venue.html DENOG17 starts with workshops and our traditional pre-social on November 9th. If you plan to attend any of the workshops, please remember to register as soon as you have received your ticket. In addition to IPv6, BGP, and best practices workshops, this year we will also offer another leadership track. https://www.denog.de/de/meetings/denog17/workshop_registration.html The conference will open with presentations on Monday, November 10th. If you can't make it on Sunday for the workshops, we've got you covered. This year, we will have two tracks in 2 different rooms. The program committee compiled a packed agenda with a huge variety of talks. All talks will be in English. Take a sneak peek at our Agenda: https://pretalx.com/denog17/schedule/ Cheers, Stefan & the DENOG event team

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Call for Proposals for the NLUUG fall conference 20 November 2025
by Willem Toorop 10 Sep '25

10 Sep '25

The NLUUG is the association of (professional) users of UNIX/Linux, Open Source, Open Systems and Open Standards in the Netherlands. The NLUUG organises two large conferences every year. The fall conference 2025 will be held Thursday the 20th of November 2025 in the Van der Valk Hotel Utrecht. The Programme Committee is seeking contributions from the community. For our conferences we like the following subjects (and more): Automation, Content Management Systems (CMS), Configuration management, Cryptography and crypto analysis, Databases, Home automation, Information security, Internet (standards, technical aspects), Interesting events and history, Network (analyse, firewalls), Open source, Open standards, Operating systems, Programming languages, Privacy, Software development, Tools, Web technology, and more... This list is just an indication. A default speaker slot is 45 minutes. This includes the time to answer questions. Speakers will receive the following benefits: * Free access to our conference * Lunch, coffee/tea/beverages * Invitation to join our speakers dinner Talks may be in English, but also in Dutch. If you have a good topic, don't hesitate to submit a proposal on https://cfp.nluug.nl/nluug-najaarsconferentie-2025/cfp Proposals can be submitted until the 7th of October 2025 23:59 CET. Willem Toorop on behalf of the NLUUG programme committee

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Spoofer Report for NLNOG for Aug 2025
by CAIDA Spoofer Project 08 Sep '25

08 Sep '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Aug 2025: ASN Name Fixed-By 207176 OPENFIBER 2025-08-28 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Aug 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-08-26 3920 IMS-RTFM 2023-10-06 2025-08-28 62353 ASN-DATAPLACE 2023-12-12 2025-08-18 39686 ASN-EUROFIBER 2025-04-28 2025-08-11 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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Spoofer Report for NLNOG for Jul 2025
by CAIDA Spoofer Project 08 Aug '25

08 Aug '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Jul 2025: none inferred Source Address Validation issues inferred during Jul 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-07-29 3920 IMS-RTFM 2023-10-06 2025-07-31 39686 ASN-EUROFIBER 2025-04-28 2025-07-07 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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Get your tickets for NLNOG Day 2025!
by Robert van der Meulen 01 Aug '25

01 Aug '25

Hoi allemaal, hi all! (English text can be found below) Het is bijna weer zover: op Dinsdag 30 September organiseren we NLNOG Day 2025, wederom in Podium Mozaïek in Amsterdam. Inmiddels is de ticketshop open, en kan iedereen zich aanmelden. Zoals altijd is de toegang voor iedereen gratis door de hulp van onze fantatische sponsors - maar we bieden ook de mogelijkheid om mee te sponsoren door een betaald kaartje aan te schaffen. Alle tickets zijn beschikbaar via https://nlnog.net/tickets . Het programma voor deze NLNOG Day is nog niet compleet, maar we maken er zeker weer een leuke dag van, gevuld met presentaties over interessante onderwerpen. Het evenement is eigenlijk elk jaar uitverkocht, dus reserveer snel je kaartje! Voor wat extra hulp met het overtuigen van je leidinggevende of werkgever hebben we op https://nlnog.net/why-should-i-attend/ een handig overzicht staan met wat goede argumenten om dit evenement echt niet over te kunnen slaan :) Tot slot zijn we nog steeds op zoek naar meer interessante talks. dus als je een leuk onderwerp hebt en mee wil helpen door een presentatie te doen, meld deze dan zeker aan via de inschrijfpagina op https://nlnog.net/cfp . Hopelijk zien we je op 30 September in Amsterdam! (English) It's almost that time of the year again: On Tuesday the 30th of September we're organizing NLNOG Day 2025, in Podium Mozaïek in Amsterdam. We have just opened the ticketstore, and everybody can sign up. As always, attendance is free for everyone thanks to the help of all of our amazing sponsors - but we're offering the possibility to help out in sponsoring us by offering paid tickets as well. All tickets are available via https://nlnog.net/tickets . The programme for this NLNOG day is not yet complete, but we will make it into an exciting day, filled with lots of presentations on interesting topics. The event is typically sold out, so be quick in reserving your spot! For some extra help in convincing your manager or employer, on https://nlnog.net/why-should-i-attend/ there is a useful overview with some good reasons why you really shouldn't skip this event :) Lastly we are still looking for more interesting talks, so if you have a nice topic, and want to help out by presenting, please do register your proposal via the registration page on https://nlnog.net/cfp . We're hoping to see you on the 30th of September in Amsterdam! Met vriendelijke groet, kind regards, On behalf of the NLNOG Board Robert van der Meulen -- Robert van der Meulen Stichting NLNOG

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