A communication control system includes a terminal apparatus and a maintenance terminal apparatus. The terminal apparatus includes a determining unit that selects an address of the terminal apparatus from addresses other than an address of a communication destination to determine the address used for the transmission and reception of data, the communication destination defining network positional information of the maintenance terminal apparatus; a discarding unit that discards an address resolution request; and a communication unit that transmits data only to the address of the communication destination and receives only the data from the address of the communication destination. The maintenance terminal apparatus includes a communication unit that provides maintenance data through the communication with the terminal apparatus; and a setting unit that stops an address resolution process for the address of the terminal apparatus during the communication with the terminal apparatus.