Instantiate cube on network

well, i have a cube prefab i cloned it with this code

 Network.Instantiate(playerPrefab, new Vector3(0f, 5f, 0f), Quaternion.identity, 0)as GameObject;

and i have a camera prefab which have SmoothFollow.js. on the network,how to clone the cube, camera and make the cube as target?

In short, how to clone the player and his camera < the camera isnt child of cube > thanks,,,,