Dear all
On 09.03.21 11:16, Jeroen Massar wrote:
I have.... your answer :)
$ telnet -6 www.swisscom.ch 80 Trying 2a02:a90:c400:5001::2... telnet: Unable to connect to remote host: Connection refused
I have an update on this issue. I was so blunt and opened a ticket for an IP-Plus customer, claiming that they could not access www.swisscom.ch over IPv6.
It took some time and at least three second-level supporters until someone within IP-Plus found someone from the webserver team who knew who was managing that load-balancer and now IPv6 seems to work again. I have yet to receive an official confirmation that the issue is permanently solved. Maybe they'll share the root cause of the issue but I doubt it.
Best Regards and thank again to all who gave insights into those technical details within tcpdump.
Jean-Pierre