A method of configuring a wireless connection of an image forming apparatus via near field communication (NFC) is provided. The method includes receiving, by the image forming apparatus, wireless configuration information and Internet protocol (IP) address configuration information from a mobile device when the mobile device is tagged by the image forming apparatus, performing, user authentication of the mobile device with respect to the image forming apparatus, establishing communication between the image forming apparatus and an access point (AP) based on the wireless configuration information, and assigning an IP address to the image forming apparatus based on the IP address configuration information.