Hi. I made what you are looking for. The basic idea is that every node has is own uniqueID, then, when a node ask to de Wateway for a node number, it is taked from a table. [image: 1529845513361-d0d03c02-9ce9-4d27-a76d-67bd41afcbed-imagen.png] Of course, I meade some modification to library to do that.