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Likely you'll have to include a protocol like IGMP—assuming you're using IPv4. The standard multicast in the Internet Protocol ends at router boundaries for a good reason. Unfortunately, I have no Contiki experience to help you out with the specifics of the implementation. However you solve the issue, you'll need to establish proper boundaries for the ...


Copper actually is a tool for sending CoAP requests; it is a simpler implementation of REST service. If you want to work with another protocol (not HTTP) then you should look for another tool.


We usually refer to the gateway in RPL as the border router. Here is an example from the Autonomous Networks Research Group of the University of Southern California on how to simulate a border router with Cooja. Border routers are routers that can be found at the edge of a network. Their function is to connect one network to another. The page also links ...

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