In a control apparatus that controls communication of a telexistence system including a slave robot and an operating device, a state acquisition part repeatedly acquires status reports respectively from the operating device, the slave robot, and a plurality of virtual routers that connect the operating device and the slave robot while communication between the operating device and the slave robot is established. A path determination part determines a communication path for transmitting a control instruction for controlling the motion of the slave robot to the slave robot on the basis of the acquired status reports when the state acquisition part acquires the status reports. An instruction transmitting part transmits an instruction for forming the communication path determined by the path determination part to each of the plurality of virtual routers.