If I had a Dlink DIR-615 wifi router
http://www.dse.co.nz/dse.shop/4da01708010b12302741c0a87f3b0624/Product/View/XH0578
And I wanted to connect it to my dsl modem(which has 4 ethernet ports) which I already have, how easy would it be to do? Would I just run a patch cable from the DIR-615 wifi router internet port to my dsl modem's ethernet port and then whenever I connect via wifi to the dir-615 will I be able to access the internet?