I need more gigabit ports for my home so I am looking into buying a switch with at least 4 ports. They all have to be gigabit. Correct me if I am wrong, but if I have a router hooked into the switch, can I program the switch to simply pass DHCP requests off to the router? For instance this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16833127493 I assume the 5th port would actually be where the router connects to it?????