DSPHR: A Dynamic SDN-Based Port Hopping Routing Technique for Mitigating SD-WSN Attacks

This study introduces a dynamic SDN-based port hopping routing (DSPHR) technique to enhance the practical security defense of software-defined wireless sensor networks (SD-WSNs) in wireless networks. DSPHR aims to thwart network probe and packet intersection attacks by formulating route hopping as a limitation resolution problem. The technique integrates the compliance quotient theory (CQT) solver to establish constraints for achieving multiple routes, addressing capacity and overlap constraints. The SDN controller of the WSN, following a route hopping strategy and designated hopping slots, configures flow entries in OpenFlow switches along each transmission route. These entries enable the proper forwarding of secured communication flows. Simultaneously, the information regarding ports and addresses undergoes random alterations, ensuring not only random route hopping but also concealing original communication entity details. Theoretical analysis and experimental simulations validate DSPHR’s efficacy, demonstrating seamless and optimal route hopping with minimal communication latency. The technique significantly bolsters practical security measures, providing robust defense against interception and probe attacks in SDN-based wireless networks.