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How to Validate the device joining in the network

Hi , 

   My network will be many to one , there will be one coordinator and rest of the devices are router devices.In my coordinator device there will be a list of IEEE address(router device IEEE address),i need to validate the router device while joining to the network ,if joining device is not in my device list ,i should not allow the device to join the network .

  What should i know is how to validate the joining device with my device list which is maintained in coordinator device