Also most WLAN routers can run DHCP. I too have very small network (5 machines including n770 and router) and have DHCP with static binding to MAC address since it is easier on the clients. When dualbooting various systems on same machine I don't need to configure IP addresses in each OS. And since you need to enter MAC addresses on the router for proper wi-fi security anyway, it comes as nice bonus and makes life easier.