> So that's basically most of the lowest layers of the Xbox Live protocol as well. Simply game discovery happens over local broadcast instead of through the Live servers. There's some other specifics that change, such as logging into a host xbox doesn't diffie-hellman anymore but instead key sets are distributed by the server backends with the session information. Additionally the auth side is basically non existent on system link.

Ah, cool, there has been some similar work done before! Is there any documented resources or write-ups of the Xbox Live protocol somewhere?

> Great RE work!

Thanks!

> Disclaimer: I created a proof of concept implementation of the Xbox Live server infrastructure here: https://github.com/xombieonline

That is a really cool project! How does one make sure the console connects to the server instead of the (now shutdown) Xbox Live servers? Does it e.g. have a hardcoded domain so one can simply add a DNS entry?