How to read the MAC address of all connected devices to Zigbee?

XBee & XBee Gateway XBee - Zigbee
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Hi,
I’m using Xbee3 ZigBee 3.0, I want to know is there a way to get the MAC address of all the connected devices to the coordinator and to select only those from which I want to receive the Data and block the others from receiving any data…??

any suggestions/help?

Thanks.