I have been troubleshooting my mailbox sensor (Smartthings Multi Sensor) that is supposed to signal when the mailbox is opened after 10pm. It's out of range most of the time and I missed the two times the guys came through the neighborhood in the last couple months. Smartthings hub has two antennas inside it - ZWave and Zigbee so basically I have two mess networks running. They rebroadcast only their own protocol.... Below is my list of which is on each network for my own reference. Devices on battery power do not reboardcast signals.

Zigbee
Basement Leak Sensor (battery)
Arrival Sensor ST (battery)
Front Door Sensor (battery)
Mailbox Sensor (battery)
Bulb - Lamp Kitchen hall
Bulb - Loft
Bulb - Office
ST outlet
ST Motion Sensor (battery)
Mudroom Door Sensor (battery)

ZWave
Doorbell speaker
Front door Lock (battery)
Front door GE switch
Greatroom switch
Sliding Door Sensor (battery)
GE Outdoor outlet
Motion Sensor 4 in 1 (battery)