nanog mailing list archives
IPv6 connectivity to mx[1-4].smtp.goog.
From: "Marco Davids \(Private\) via NANOG" <nanog () nanog org>
Date: Tue, 27 Feb 2024 14:02:46 +0100
Hi,At https://internet.nl we're seeing IPv6 connection issues on TCP port 25 (SMTP) to mx[1-4].smtp.goog.
Either 100% DROP (so no TCP connection) or β failure to setup connection. Further testing seems to confirm the problem is bigger and on Google's side. So, this fails: echo 'quit' | nc -6 -w 3 mx1.smtp.goog. 25 and this works: echo 'quit' | nc -4 -w 3 mx1.smtp.goog. 25 (on MacOS use -G instead of -w) Is anyone else seeing this? Any idea what is causing this? -- Marco
Current thread:
- IPv6 connectivity to mx[1-4].smtp.goog. Marco Davids (Private) via NANOG (Feb 27)
- RE: IPv6 connectivity to mx[1-4].smtp.goog. Brotman, Alex via NANOG (Feb 27)
- Re: IPv6 connectivity to mx[1-4].smtp.goog. ππΆππΈπ ππΆππΎπΉπ via NANOG (Feb 27)
- Re: IPv6 connectivity to mx[1-4].smtp.goog. Christopher Morrow (Feb 27)
- Re: IPv6 connectivity to mx[1-4].smtp.goog. ππΆππΈπ ππΆππΎπΉπ via NANOG (Feb 27)
- RE: IPv6 connectivity to mx[1-4].smtp.goog. Brotman, Alex via NANOG (Feb 27)