Xbox Live Spoofer

I want a program that will act as a fake Xbox Live server to allow me to sign into my account and keep me connected. I do not wish to play online or anything other then sign into MotoGP Online Demo and stay connected while playing the timetrial mode (does not require any other players). I imagine one could capture the communications between the Xbox/server and replicate them on a computer connected to the same local network.? MotoGP is a game for the Original Xbox ... support for classic games will be going down in a month and there will be no way to play it after that. ? So this project may require an Xbox/XboxLive (I can provide a copy of the Demo, as it's hard to find). ? If you walk me through how, I could attempt to capture packets and send the data to you, however then you would be unable to test it on your own.