Xbox Live/Connection Test

The network settings screen on the Xbox Dashboard will perform a connection test to Xbox Live when a user edits settings, to ensure that it can still connect to the Internet.

If the user has not connected to Xbox Live before, this will be where the Xbox first connects to create a Machine Account via MACS (Machine Account Creation Service). Then, it will use this account to authenticate the machine and perform a ping test as well as a speed test on dashes before 5960(? double check if this was the first dash to change behaviour).

Extra Info

Pressing Y once the connection test has finished will show some extra info, and on 5960 dash and later will also perform an MTU test(? plaintext in the packet says MTU test) using the domain XXXXX.XBOXLIVE.COM (which the 360 also uses)

Packet Log

Pressing the Black button on the controller once the connection test has finished will save a packet log to the hard drive as a save [FIXME: add more info] - xbcap2pcap can convert this DAT file into a standard PCAP.

The DAT's structure is as follows:

uint32_t total packet length
uint32_t timestamp in ms
total packet length - 8 bytes of Ethernet packet data