I have recently got the gigapower gigabit service from AT&T. I have an Asus ac87u and I would like to get rid of the AT&T gateway. From what I have read it is impossible. I am curious what the best way to hook up your own router up. Do they use MAC address of the gateway to authenticate to the network? I have the 5268AC Gateway. My dream would be able to completely by pass the gateway not just IP pass through or DMZ.