Hi Gregor Thank you for your insights.
On 02.03.21 20:51, Gregor Riepl wrote: > I tried different ISPs to which I have access and I can't establish a > IPv6 connection to port TCP/443 to neither 2a02:a90:c400:4001::2 nor > 2a02:a90:c400:5001::2 which seems the two loadbalancers responsible for > www.swisscom.ch except from a Swisscom Business DSL connection. > > Init7 -> fail > Strange, from AS13030 (Fiber7 residential), both IPs work fine. I just tried it again from a customer with a Fiber7 access and I still can't open www.swisscom.ch neither in a browser edge / firefox on a windows machine, nor from wget on a linux server. > Perhaps something is wrong with your test client? Wrong MTU? OS issue? > Did you try a different machine? I tried from various windows and linux machines from our office (via netrics), from customers (fiber7) and from our datacenter (nts) and it's all the same - I use different routers, different OS versions. My datacenter ISP (nts) suspects that it's a reverse path issue and advised me to use atlas probes to confirm. I made two mesurement but the results show more successes that failure: https://atlas.ripe.net/measurements/29275604/#probes https://atlas.ripe.net/measurements/29275617/#probes So maybe it's really only me and I have to live with the fact that I can't login to the swisscom website when v6 connectivity is enabled. Strange thing is that I even found a swisscom sme fiber customer where the connection to https://www.swisscom.ch times out and one on a ip-plus fiber access. Maybe that's my best bet to open a ticket with their support. It would be so much easier to debug if their webserver would answer to pings on v6. I'll keep the list updated if I have any relevant news. Best Regards and thanks again to all of you who spend some time on this issue already Jean-Pierre -- HILOTEC Engineering + Consulting AG - Langnau im Emmental IT für KMUs: Netzwerke, Server, PCs, Linux, Telefonanlagen, VOIP, Hosting, Datenbanken, Entwicklung, WLAN, Cloud, Firewalls Tel: +41 34 408 01 00 - https://www.hilotec.com/ _______________________________________________ swinog mailing list [email protected] http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
