(In reply to Thomas Blume from comment #1) cted "ifup ens3" and "ifup ens4". > > It seems that the boot parameters are missing ifname= settings, hence the > kernel names are used. Disabling udev names on tumbleweed (net.ifnames=0) works, but we should be able to use consistent naming on TW too. Also tested an explicit net.ifnames=1, and as expected shows the same bug (device names are ensX, that is correct, but ifup is called under ethX names)