realtek®

I need to set up 10 comps via lan for playing games, can someone pls help me on how to do that... P8H61-M LX asus. It has an inbuilt lan support, LAN Realtek® 8111E , 1 x Gigabit LAN Controller(s) Would that be enough or should i get a seperate Network card? And how do i set it up.