I'm kind of a newbie too, but yes I think you need a controller. It's the controller who assigns ID's to the sensor nodes.

Have you set up any controller? For example Domoticz or MYSController?

@floris Ok thanks, I've seen that post but that was not a solution to the oneway communication.

@floris Do you have any link, I have searched the Domoticz forum without success.

@kunall Please post a note here if you will get any solution from Domoticz.

I have the same issue, if I use Myscontroller it works using the ethernet gateway but not when using Domoticz.