I can't find where you can set a static IP in the network settings.
Anywhere top level?
I don't have a good place to upload pictures to illustrate, but I'll try to talk you through it as best I can. I downloaded a copy of Kubuntu 15.04 just so I could help you with this!
In order to access the network settings for a specific connection and add a static IP, do this:
For cpe:/a:kde:plasma-workspace:5.27.10
:
Invoke System Settings (systemsettings5
);
Access Connections (kcmshell5 kcm_networkmanagement
);
Select the network;
Choose IPv4 or IPv6; and
Select the Manual method:
However, how to use the IPv6 panel is not obvious to me, due to the values it (dis)allows.