Xbee network allow on certain devices to join

XBee & XBee Gateway XBee - Zigbee
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1

Hi
I am building a Xbee network using the XBee Pro S2C modules.

I have one coordinator and multiple endpoints (no routers). I want to ensure that only my endpoints can connect to my coordinator.

At the moment I have achieved this by using security, I have turned encryption (EE=1) and set a matching encryption key (KY) on both coorinator and endpoints. Each coordinator we build will have a unique PANID (ID) and each endpoint has a PANID of zero to ensure it can connect to any of my coordinators.

The problem is that turning on security has a serious impact on data throughput, so I would like to turn off security. However I still need a method of ensuring only my devices can connect to my coordinators.

I was wondering if the Device Type Identifier could somehow be used to only allow certain devices to connect. Or is there some other method?

Alternatively, if I cannot prevent devices joining during discovery, is there a way I can ‘kick’ them off the network and then turn off discovery?

Any advice from the community would be appreciated

Many thanks

2

Yes you can use the ZDO function along with the NJ command. That is you can use the ZDO functions to force a given node to disassociate and then turn of Joining (NJ=0).

3

Thanks mvut

I did look into that and thought that may be an option. In your opinion is there no way of preventing them joining in the first place without using security or a unique PID?

Many thanks for your feedback.