Background: The privacy enabled IPv6 addressing mechanism ensures the privacy of the
node's identification in the communication messages. It makes it difficult for adversaries to track nodes
and link any activities with the node's IP or the MAC address. Scalability of the privacy enabled IPv6
addressing scheme for 6LoWPAN may be affected due to underlying MAC layer mechanisms.
Objective: Hence, this study aims to explore such an impact.
Methods: Addressing scheme is implemented in the Contiki operating system which uses duty cycling
at the MAC layer along with the CSMA channel access mechanism. ContikiMAC and
CXMAC are widely used duty cycling protocols in Contiki. An analytical study is presented in
this paper, which analyses the IPv6 address configuration delay with ContikiMAC and CXMAC.
Simulation is performed to corroborate the presented analytical model. The address configuration
latency limits the scalability of the network. Hence, this paper studies the impact of duty cycling
of the nodes on the address configuration latency and estimates the size of a single hop PAN.
Results & Conclusion: It is observed that the ContikiMAC duty cycling protocol can achieve better
performance compared to the CXMAC protocol in terms of address configuration latency. In
order to make up for the delay due to duty cycling, the network can be divided into multiple PANs
of smaller sizes where the addressing process runs simultaneously.