Abstract
In this paper, an alternative management scheme is proposed for the DHCP lease time in Internet of Things(IoT) environment. In the proposed scheme, the Dynamic Host Configuration Protocol(DHCP) server manages addresses as well as lease time using the type of IoT device. The MAC header of DHCP message sent by IoT device is modified newly by adding specific information to reflect the type of IoT device. The DHCP server can recognize the type of IoT device from the newly defined MAC header and return an address to the IoT device with a lease time determined by the type of IoT device. For the efficient management, a policy for allocating address and lease time should be required. According to this policy, allocated addresses and lease times are stored in a lease database. Examples of the table for diverse IoT types and the policy for allocating address and lease time are given.
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