nanog mailing list archives

Re: Spectrum networks IPv6 access issue


From: Daniel Marks via NANOG <nanog () nanog org>
Date: Tue, 2 May 2023 16:40:38 -0400

My issue was just trying to convince Spectrum to look into the problem in the first place, I brought the Atlas probe 
receipts because it’s such a helpful tool, but wasn’t able to get through to anyone helpful (acct mgr, noc email, even 
the escalation list) until I started lighting fires filing FCC complaints and using social media (which thankfully 
worked).

Not sure how accurate it is (I hope it isn’t), but some of the techs I spoke to said a lot of the internal tooling for 
troubleshooting is incapable of dealing with IPv6, so they weren’t able to do things like run traceroutes to confirm 
what I was seeing. My guess is that this issue was caught in a catch-22 where they needed impossible to obtain proof on 
their end to escalate to a team who can actually deal with the issue.

Sucks for us folk who went all in on v6 only to find out not even the ISP can help us. 

-Daniel Marks

On May 2, 2023, at 15:36, Jared Mauch <jared () puck nether net> wrote:



On May 2, 2023, at 2:43 PM, Daniel Marks via NANOG <nanog () nanog org> wrote:

This has been “resolved", I finally got through to some awesome engineer at Spectrum who has rerouted traffic while 
they work with their hardware vendor (thanks Jake):


One of the tools that I’ve used in the past is the RIPE Atlas service to measure these things.  It’s helped me 
isolate IP space reachability issues for new announcements, because you can get enough of a random sample of hosts to 
isolate things, and enough data about that endpoint to launch follow-up measurements.

- Jared

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