Created attachment 112870 [details] screenshot of bridge option in nm-applet NetworkManager supports "bridge-util" style bridging on Linux. This can be done through the "nm-applet" GTK connection editor for Network Manager as shown in the attachment. To get to this state, right click nm-applet, click "edit connections" and click plus sign button. nm-applet GTK has a "Virtual" group that includes "Bridge". plasma-nm has groupings for "Hardware based connections", "VPN connections" and "Other", but "Bridge" is not listed in any. Also: when a bridge device is available in NetworkManager, it is not shown in the plasma-nm network list. Even if you create a bridge with nm-applet, you have to enable it from the command-line because it is not available to manage in "plasma-nm".
We support it as well, you just have to go to applet's configuration and enable "Show and configure virtual connections" option. I know it's not easily discoverable, but I don't really want to have it enabled by default.
Jan - I do believe you.. but I cannot find for the life of me where the "Show and configure virtual connections" option is. Maybe I'm just being thick - but I can't find this option for the life of me. Wouldn't a VPN be considered a "virtual connection" in this regard as well? And furthermore - if a bridge is preconfigured in NetworkManager(via command-line or some other means) - wouldn't it make sense to have the connection be at least visible in network manager instead of just showing as disconnected? Maybe that behavior is better suited for a separate bug report - but it is very misleading behavior when you are connected to a NetworkManager bridge connection but plasma-nm doesn't show your connection due to a default setting Thanks again for your time/consideration
edit: found it - looks like the option isn't in system settings, but it's in "Netowkr Settings - Plasma" config dialog. You can get to this from right clicking on plasma-nm and selecting "Configure Networks" (just in case someone reading this also can't find it)