Created attachment 574932 [details]
Kernel .config file
I am running a PC on sys-kernel/gentoo-sources-5.0.10. I need at least a 4.20.x kernel to support the quite new Intel Core i5-9600K CPU build in graphics. But 4.20 is end of development.
The system runs IPv4 and IPv6 in a dual stack configuration.
Since i have changed to 5.0.x SSH IPv6 sessions terminating at this PC hang after a few minutes. When I boot a 4.20 kernel everything is fine, when i reboot to 5.0.x SSH (and rsync) via IPv6 hang after a while.
I have no idea how to track this down. There are no findings in syslog or dmesg.
A change from openssl 0.9.8 to 1.1.0 did not show any difference.
Created attachment 574934 [details]
IPv6 privacy settings
Created attachment 574936 [details]
Created attachment 574950 [details]