Multicast DIS attack mitigation in RPL-based IoT-LLNs

The IPv6 Routing Protocol for Low-Power and Lossy Networks (RPL) was standardised by the IETF ROLL Working Group to address routing issues in Internet of Things (IoT) (LLNs). RPL builds maintains a Destination Oriented Directed Acyclic Graph (DODAG) topology using pieces information propagated within DODAG Information Object (DIO) control message. When node intends join DODAG, it either waits DIO or sends Solicitation (DIS) message Multicast solicit DIOs from nearby nodes. Nevertheless, sending DIS messages resets timer that regulates transmission rate its minimum value, which leads network’s congestion with messages. Because resource-constrained nature RPL-LLNs, lack tamper resistance, security gaps RPL, malicious nodes can exploit solicitation mechanism trigger an RPL-specification-based attack, named attack. attack have severe consequences on networks, especially packets overhead power consumption. In this paper, we use Cooja–Contiki simulator assess attack’s effects both static dynamic PRL networks. Besides, propose implement novel approach, namely RPL-MRC, improve RPL’s resilience against Multicast. RPL-MRC aims reduce response Simulation results demonstrate how could damage network performance significantly increasing On other hand, proposed shows significant enhancement reducing consumption different scenarios.