  In recent times, the Internet of Things (IoT) has a significant rise in
industries, and we live in the era of Industry 4.0, where each device is
connected to the Internet from small to big. These devices are Artificial
Intelligence (AI) enabled and are capable of perspective analytics. By 2023,
it's anticipated that over 14 billion smart devices will be available on the
Internet. These applications operate in a wireless environment where memory,
power, and other resource limitations apply to the nodes. In addition, the
conventional routing method is ineffective in networks with limited resource
devices, lossy links, and slow data rates. Routing Protocol for Low Power and
Lossy Networks (RPL), a new routing protocol for such networks, was proposed by
the IETF's ROLL group. RPL operates in two modes: Storing and Non-Storing. In
Storing mode, each node have the information to reach to other node. In
Non-Storing mode, the routing information lies with the root node only. The
attacker may exploit the Non-Storing feature of the RPL. When the root node
transmits User Datagram Protocol~(UDP) or control message packet to the child
nodes, the routing information is stored in the extended header of the IPv6
packet. The attacker may modify the address from the source routing header
which leads to Denial of Service (DoS) attack. This attack is RPL specific
which is known as Hatchetman attack. This paper shows significant degradation
in terms of network performance when an attacker exploits this feature. We also
propose a lightweight mitigation of Hatchetman attack using game theoretic
approach to detect the Hatchetman attack in IoT.
