I am wanting to open my NAT on my Macbook when playing xbox online. I am getting wireless from a linksys router, in when a embarq 660 modem is hooked to it. I am bridging with an ethernet cable from my macbook to the xbox currently. Doing the internet sharing, blah blah tutorial that you can find on youtube to allow this. Hopefully someone that has a macbook and is/was in a similar situation to me can help me out on how to do this. I have tried many searches and tried to follow the steps in these searches, but can't figure it out.