Super Smash Bros. Brawl

General info

Actual rounds are entirely P2P. Nintendo servers just handle matchmaking.

Connection phase is encrypted over SSL. Matchmaking afterwards seems unencrypted.

Domains looked up:

• gpcm.gs.nintendowifi.net
• gpsp.gs.nintendowifi.net
• gamestats.gs.nintendowifi.net
• gamestats2.gs.nintendowifi.net
• smashbrosxwii.available.gs.nintendowifi.net
• smashbrosxwii.natneg1.gs.nintendowifi.net
• smashbrosxwii.natneg2.gs.nintendowifi.net
• smashbrosxwii.natneg3.gs.nintendowifi.net
• smashbrosxwii.master.gs.nintendowifi.net
• smashbrosxwii.gamestats.gs.nintendowifi.net
• smashbrosxwii.gamestats2.gs.nintendowifi.net
• smashbrosxwii.ms11.gs.nintendowifi.net
• naswii.nintendowifi.net - Web server, secured with HTTPS. Trying to connect with a web browser gives a ssl_error_handshake_failure_alert error.

Packet captures

• Full Session: Connect -> Basic Brawl -> One round -> Disconnect
• Connection to Nintendo Wi-fi only
• After connection: Basic Brawl -> Error waiting for game
• After connection: Basic Brawl -> One round
• After connection: Disconnect

SSL Dumps

Capture SSL dumps originated from

The following are from a first-time connection to Brawl. Note the back-and-forth for listing the files to download and selecting one.

Transmit

Receive

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