May 2019 - NANOG - lists.nanog.org

historical BGP announcements? (pre-1997)
by John Osmon 08 May '19

08 May '19

I've got a need to look for some announcements from the mid 1990s. The oldest I've found at at the University of Oregon Route Views Project, but the earliest I can find there appears to be November of 1997. Anyone have pointers to date from earlier?

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Re: EXERCISE: 2019 IAA Planetary Defence Conference - Day 5 Scenario
by Scott Weeks 08 May '19

08 May '19

--- sean(a)donelan.com wrote: From: Sean Donelan <sean(a)donelan.com> Of course, any fictional scenario is more likely to hit an ocean...But that makes for a dull exercise. ------------------------------------- Not for some of us... ;-) scott

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any interesting/useful resources available to IPv6 only?
by Brian J. Murrell 07 May '19

07 May '19

Hi, I am trying to make a case (to old fuddy-duddies, which is why I even need to actually make a case) for IPv6 for my own selfish reasons. :-) I wonder if anyone has any references to interesting/useful/otherwise resources on are only available to IPv6 users that they can forward to me. Cheers, b.

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DNS and QNAME MINIMISATION
by Mark Andrews 07 May '19

07 May '19

Recursive servers that perform QNAME MINIMISATION are being deployed and they are exposing broken delegations like this one. % dig -x 142.136.234.134 ;; BADCOOKIE, retrying. ; <<>> DiG 9.15.0-dev+hotspot+add-prefetch+marka <<>> -x 142.136.234.134 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 39443 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: d4d342d1c371c244772e3c725cd0e9163bc9f7112443be2b (good) ;; QUESTION SECTION: ;134.234.136.142.in-addr.arpa. IN PTR ;; Query time: 4140 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Tue May 07 12:10:30 AEST 2019 ;; MSG SIZE rcvd: 85 % Now you may think, so what? But when you do a dig +trace you find this at the end ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27732 ;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags: do; udp: 4096 ;; QUESTION SECTION: ;134.234.136.142.in-addr.arpa. IN PTR ;; AUTHORITY SECTION: 136.142.in-addr.arpa. 86400 IN NS ns1.twcable.com. 136.142.in-addr.arpa. 86400 IN NS ns2.twcable.com. 136.142.in-addr.arpa. 10800 IN NSEC 137.142.in-addr.arpa. NS RRSIG NSEC 136.142.in-addr.arpa. 10800 IN RRSIG NSEC 5 4 10800 20190521003550 20190506233550 3402 142.in-addr.arpa. CErPYfRum0q2On4+XSc3avPzzqYa98oxYFp+8NRblUnbgAQ02Jta/FWS NcpBBvMnw6sTIfsVY0TqgAC6MCMj8ojHca3+IgVFqa2gSPISewvH1ajl rNLPAiIgiOjIwdQFe2FRd9UaKnl3XKGsYYLFmAe4yn3wL5aIRaVKjFAi y0w= ;; Query time: 373 msec ;; SERVER: 2001:67c:e0::10#53(2001:67c:e0::10) ;; WHEN: Tue May 07 12:11:46 AEST 2019 ;; MSG SIZE rcvd: 322 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59480 ;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags: do; udp: 4096 ;; QUESTION SECTION: ;134.234.136.142.in-addr.arpa. IN PTR ;; ANSWER SECTION: 134.234.136.142.in-addr.arpa. 14400 IN PTR nce.mail.chartercom.com. ;; AUTHORITY SECTION: 234.136.142.in-addr.arpa. 500 IN NS cdp-wn-tm-5-01.inf.twcable.com. ;; Query time: 1009 msec ;; SERVER: 165.237.86.252#53(165.237.86.252) ;; WHEN: Tue May 07 12:11:47 AEST 2019 ;; MSG SIZE rcvd: 135 % And I’m pretty sure Charter/TWCable want email to be delivered to/from them. The reason for the failure is that cdp-wn-tm-5-01.inf.twcable.com does not exist and qname minimisation results in the recursive server discovering the NS record and as there is no A or AAAA records for this name the PTR lookup fails. % dig cdp-wn-tm-5-01.inf.twcable.com ;; BADCOOKIE, retrying. ; <<>> DiG 9.15.0-dev+hotspot+add-prefetch+marka <<>> cdp-wn-tm-5-01.inf.twcable.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 48170 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: d39d81ee2cc4f57c8558cf475cd0eaa7f5079768e7dfb548 (good) ;; QUESTION SECTION: ;cdp-wn-tm-5-01.inf.twcable.com. IN A ;; AUTHORITY SECTION: twcable.com. 3600 IN SOA ns1.twcable.com. hostmaster.pblpdns01.twcable.com. 2019042503 14400 7200 604800 3600 ;; Query time: 610 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Tue May 07 12:17:11 AEST 2019 ;; MSG SIZE rcvd: 170 % -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka(a)isc.org

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NTP question
by Mehmet Akcin 07 May '19

07 May '19

hey there Nanog, I am trying to buy a GPS based NTP server like this one https://timemachinescorp.com/product/gps-time-server-tm1000a/ but I will be placing this inside a data center, do these need an actual view of a sky to be able to get signal or will they work fine inside a data center building? if you have any other hardware requirements to be able to provide stable time service for hundreds of customers, please let me know. mehmet

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Re: Fibre provider in Starkville, MS
by Marshall, Quincy 06 May '19

06 May '19

-------- Original message -------- From: Mehmet Akcin Date: 5/6/19 09:02 (GMT-05:00) To: Theo Voss Cc: nanog(a)nanog.org Subject: Re: Fibre provider in Starkville, MS "hi Theo, Looks like Earthlink (now Windstream) has fiber there. You can visit www.infrapedia.com<http://www.infrapedia.com> to look at what is available. <snipped>" Hasn't windstream filed for Chapter 11/13 protection? Not certain that's the best choice. LQ Marshall --------------------------------------------------------------------------------------- This email has been scanned for email related threats and delivered safely by Mimecast. For more information please visit http://www.mimecast.com ---------------------------------------------------------------------------------------

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Fibre provider in Starkville, MS
by Theo Voss 06 May '19

06 May '19

Hi all, we’re looking for a regional (and agile) ISP who can provide 1 Gbps full-transparent layer2 connectivity from an office building in Starkville, MS (address on request) to our PoP in Atlanta (https://www.peeringdb.com/fac/562) – does anyone has recommendations? :-) Thanks in advance! Best regards, Theo Voss

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Access to raw network data
by lobna gouda 06 May '19

06 May '19

Hello, Does anyone know if there is public sources for network data that can be use to train model? If not public, can someone provide access for research and all data confidentially rights will be preserved. Brgds, LG

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Widespread Firefox issues
by Brielle Bruns 04 May '19

04 May '19

Just an FYI since this is bound to impact users: https://bugzilla.mozilla.org/show_bug.cgi?id=1548973 Basically, Mozilla forgot to renew an intermediate cert, and people's Firefox browsers have mass-disabled addons. Whoops. -- Brielle Bruns The Summit Open Source Development Group http://www.sosdg.org / http://www.ahbl.org

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Looking for audiovisual resources on Clos topologies
by Sadiq Saif 03 May '19

03 May '19

Hi all, I recently read a APNIC blog post about LINE's network redesign [0] into a Clos topology. That lead to me RFC7938 [1] which has a fairly minimal explanation of the topology design itself. I was wondering if there are any NANOG or other *NOG talks explaining the Clos topology in a more audiovisual format. I figured I ask here before I go looking on a search engine. Thanks in advance. [0] - https://blog.apnic.net/2019/05/03/simplicity-is-key-to-network-redesign-for… [1] - https://tools.ietf.org/html/rfc7938 -- Sadiq Saif https://sadiqsaif.com

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