Quote Originally Posted by christer_solskogen View Post
When registration a new client (ssh tunnel) the primary network interface is set to lo0, so the system recognizes as the address instead of the ip of eth0.
This was with a SLES15 client (not tried 12SP4 yet) but how can I can change the primary interface so that I won't have to change the primary interface afterwards?
The mechanism to auto-select the primary network interface just look for the outgoing connection to reach the SUSE Manager Server.
With ssh-tunnel this is always localhost.

You can change it only after the system is available.