No DSL support in network panel

[Bill Nottingham]

Adam Williamson (awilliam at redhat.com) said: 
> > > the generic workaround is 'use nm-connection-editor'. Does that work?
> > 
> > That should certainly work to set it up; however, if it's not offered
> > through the shell icon (as that bug indicates), it will make it
> > tricky to bring up.
> 
> Ah, I don't know offhand how you'd do that.

The network control panel may or may not support DSL (haven't looked);
nmcli/ifup certainly should work.

Bill