Method of allocating IP address of image forming apparatus using DHCP, image forming apparatus and system of allocating IP address using DHCP

摘要

A method of allocating an IP address of an image forming apparatus using Dynamic Host Configuration Protocol (DHCP), and an image forming apparatus and system performing the method, the method including requesting a DHCP server to allocate an IP address to an image forming apparatus having a previously allocated IP address in response to the image forming apparatus being re-connected to a network, responding to the IP address allocation request by the DHCP server, declining to respond to the response of the DHCP server, and providing the previously allocated IP address to the image forming apparatus upon receiving no response from the image forming apparatus after a predetermined time.