Hi, I'd like to propose a new feature to hotplug a network interface to a running VM. A similar feature is already available for stopped VMs by selecting a VM and clicking on "Actions" > "Edit", tab "Interface"; the user is able to add or remove a network interface in that dialog. However, if the VM is running, that tab disables the buttons to add and remove network interfaces. This feature will allow those two operations to be performed also on running VMs. The API for adding and removing network interfaces to a VM already exist: POST /vms/<vm>/ifaces {<iface data>} DELETE /vms/<vm>/ifaces/<iface> However, they currently raise an exception when the VM is running. This feature will use those same commands in order to hotplug a network interface, keeping the existing REST interface. Any feedback will be very welcome. Best regards, Crístian.