Just for reference, the ping command is a little different
sudo ping6 -D -G 1500,1400 fly.io
I set an MSS to 1492 which pfsense (my router) translates to an MSS clamp of 1492-60 for IPv6 and 1492-40 for IPv4. This is a German Deutsche Telekom Fiber connection. Now everything works fine, I can request fly.io (and also discovered that https://ipv6-test.com was not working before and now does with the MSS clamping)
Does MSS clamping have any disadvantages? Are there any alternatives in my case?
Just for reference, the ping command is a little different
I set an MSS to 1492 which pfsense (my router) translates to an MSS clamp of 1492-60 for IPv6 and 1492-40 for IPv4. This is a German Deutsche Telekom Fiber connection. Now everything works fine, I can request fly.io (and also discovered that https://ipv6-test.com was not working before and now does with the MSS clamping)Does MSS clamping have any disadvantages? Are there any alternatives in my case?