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Looking for Hulu geolocation and IP space block contact
by Eric Kuhnke 18 Aug '23

18 Aug '23

I have a large set of residential last mile gigabit customers in the NYC/NJ area where the /24 sized blocks for our CPE DHCP pools has just been blocked by Hulu. Please contact me off list. I am also trying to help Hulu here, because they're about to have several thousand customers complaining, or taking up the time of their customer service staff.

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AT&T in Raleigh - Durham region (NC)
by Etienne-Victor Depasquale 18 Aug '23

18 Aug '23

Hello good people, If anyone from AT&T in the Raleigh - Durham region (NC) would care to contact me off list, I'd be grateful. Cheers, Etienne -- Ing. Etienne-Victor Depasquale

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Hawaiian ILEC infrastructure and fire
by Eric Kuhnke 17 Aug '23

17 Aug '23

Recently saw an aerial video where an entire neighborhood in Laihana had burned down *except* for the concrete block structure small ILEC CO. Pictures I have seen of other ILEC sites in Hawaii closely resemble some GTE sites in the Pacific Northwest (now Ziply), which makes sense with the history of GTE in Hawaii. Does anyone have some more detailed photos or examples of a telecom site that's survived while everything else around it is burned up? I'm looking to share this with some contacts in BC for rural telecom purposes and disaster preparedness discussions.

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Re: Hawaiian ILEC infrastructure and fire
by sronan＠ronan-online.com 17 Aug '23

17 Aug '23

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Destination Preference Attribute for BGP
by michael brooks - ESC 16 Aug '23

16 Aug '23

Perhaps (probably) naively, it seems to me that DPA would have been a useful BGP attribute. Can anyone shed light on why this RFC never moved beyond draft status? I cannot find much information on this other than IETF's data tracker ( https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-dpa/) and RFC6938 (which implies DPA was in use, but then was deprecated). michael brooks Sr. Network Engineer Adams 12 Five Star Schools 720.972.4110 michael.brooks(a)adams12.org :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: "flying is learning how to throw yourself at the ground and miss" -- This is a staff email account managed by Adams 12 Five Star Schools. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the sender.

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Re: NTP Sync Issue Across Tata (Europe)
by Rubens Kuhl 16 Aug '23

16 Aug '23

On Sun, Aug 6, 2023 at 8:20 PM Mel Beckman <mel(a)beckman.org> wrote: > Or one can read recent research papers that thoroughly document the > incredible fragility of the existing NTP hierarchy and soberly consider > their recommendations for remediation: > The paper suggests the compromise of critical infrastructure. So, besides not using NTP, why not stop using DNS ? Just populate a hosts file with all you need. BTW, the stratum-0 source you suggested is known to have been manipulated in the past (https://www.gps.gov/systems/gps/modernization/sa/) so you need to bet on that specific state actor not returning to old habits. OTOH, 4 of the 5 servers I suggested have their own atomic clock, and you can keep using GPS as well. If GPS goes bananas on timing, that source will just be disregarded (one of the features of the NTP architecture that has been pointed out over and over in this thread and you keep ignoring it). Rubens

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Early Registration Ends Sunday! + Sponsorships Available + Final Call for Presentations
by Nanog News 16 Aug '23

16 Aug '23

*Early Registration Ends Sunday! **Don't Miss Your Chance to Receive a Discounted Rate * NANOG 89 will take place off the coast of San Diego at the Loews Coronado Bay Resort from 16 - 18 October. *REGISTER NOW <https://www.google.com/url?q=https://nanog.us20.list-manage.com/track/click…>* *NANOG 89 Sponsorships Available! * *Invest in the Strength of the Community We've Built * *Sponsorship Benefits:* + Showcase your newest technologies + solutions + Increase your brand’s visibility + reach + Amplify your organization’s message + Connect with industry influencers + decision-makers + Empower people + inspire change *MORE INFO <https://www.google.com/url?q=https://nanog.us20.list-manage.com/track/click…>* *Final Call for Presentations* *Submission Deadline is Monday!* We want to hear from you! Present on the stage or virtually for our next meeting. Anyone interested in sharing their experiences, ideas, or the latest technologies with the greater NANOG community must submit a presentation proposal by Monday, 28 Aug 2023. *MORE INFO <https://www.google.com/url?q=https://nanog.us20.list-manage.com/track/click…>* *Video of the Week * *Network Telemetry on Modern Routers w/ Pavel Odintsov* Watch a detailed overview of traffic telemetry protocols in modern routing platforms.The speaker, Pavel Odintsov will cover well-known protocols such as Netflow, IPFIX, sFlow, and port mirror. He will additionally provide deep dive into current protocols such as inline monitoring services and IPFIX 315. *WATCH NOW * <https://www.youtube.com/watch?v=mRxmNje8wgc>

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NTP Sync Issue Across Tata (Europe)
by Mark Tinka 16 Aug '23

16 Aug '23

Hi all. I have NTP servers in Europe that are choosing Tata (6453) to get to 0.freebsd.pool.ntp.org which lives on 197.224.66.40: traceroute -I 0.freebsd.pool.ntp.org traceroute to 0.freebsd.pool.ntp.org (197.224.66.40), 64 hops max, 48 byte packets 1 ae-2-24.er-01-ams.nl.seacomnet.com (105.26.64.13) 0.300 ms 0.301 ms 0.215 ms 2 ce-0-0-11.cr-01-mrs.fr.seacomnet.com (105.16.8.201) 22.163 ms 22.370 ms 22.084 ms 3 ce-0-0-3.br-01-mrs.fr.seacomnet.com (105.16.32.254) 20.230 ms 20.243 ms 20.139 ms 4 ix-hge-0-0-0-28.ecore3.emrs2-marseille.as6453.net (80.231.165.52) 21.875 ms 21.679 ms 21.762 ms 5 * if-be-3-2.ecore2.emrs2-marseille.as6453.net (195.219.175.0) 42.751 ms * 6 if-ae-25-2.tcore1.ldn-london.as6453.net (195.219.175.5) 43.509 ms 43.280 ms 43.353 ms 7 195.219.83.158 (195.219.83.158) 203.310 ms 203.452 ms 203.209 ms 8 196.20.225.84 (196.20.225.84) 208.289 ms 208.637 ms 208.374 ms 9 197.226.230.13 (197.226.230.13) 209.657 ms 209.658 ms 209.830 ms 10 197.224.66.40 (197.224.66.40) 208.638 ms 208.632 ms 208.712 ms NTP is not sync'ing to that address, and sessions stay in an Init state. Other NTP servers I have in Africa are reaching the same address via local Anycast hosters, and sync'ing just fine. Anyone else seeing this particular issue across Tata in Europe? Mark.

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Dodgy AS327933 ...?
by Mark Tinka 16 Aug '23

16 Aug '23

Hi all. Anyone know anything about this AS: https://bgp.he.net/AS327933 Mark.

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Optimum/Altice network contact
by Dave Phelps 15 Aug '23

15 Aug '23

Hi NANOG. I'm hoping to find an Optimum/Altice contact for one of my sites in TX where I'm seeing periodic latencies of up to 2 minutes throughout the day. This has been going for several months and escalations to the right team are apparently impossible. Please email me off-list for details. Thanks Dave

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