control-center's Network panel calls nm-connection-editor to edit certain types of connections (I think wireless connections and VPNs): panels/network/cc-network-panel.c: cmdline = g_strdup_printf ("nm-connection-editor --create --type %s", type); panels/network/cc-network-panel.c: g_warning ("Failed to launch nm-connection-editor: %s", error->message); panels/network/net-vpn.c: cmdline = g_strdup_printf ("nm-connection-editor --edit %s", uuid); panels/network/net-vpn.c: g_warning ("Failed to launch nm-connection-editor: %s", error->message); panels/network/net-device.c: cmdline = g_strdup_printf ("nm-connection-editor --edit %s", uuid); panels/network/net-device.c: g_warning ("Failed to launch nm-connection-editor: %s", error->message); but our control-center package has no dependency on nm-connection-editor. If you try and configure a VPN connection without it installed, you just get zero feedback (the 'Failed to launch' message is printed only to the console if you ran from a console, I think, there's no graphical error).
commit 9d38f9b3b28fed4251fe45eac87917d2dda0b26d Author: Debarshi Ray <debarshir> Date: Sat Aug 18 00:45:33 2012 +0200 Add Requires: nm-connection-editor (RH #849268)