Comment # 11 on bug 947459 from Alan Ott

I don't know whether NetworkManager is installed, and I don't have access to
the hardware for the next couple of days. This new problem was observed on a
fresh install of the JeOS variant of Tumbleweed, Build 340. It should be easy
to determine the answer to your question on your end. What is the design of the
JeOS variant?

After a fresh install, the network doesn't work. Upon looking at YaST, the
network configuration indicates "Network Services Disabled". This doesn't seem
appropriate for an out-of-the-box installation.