wireshark-socket.io

Wireshark dissector for Socket.IO traffic

Install:

Windows: append this to C:\Program Files\Wireshark\init.lua

dofile("C:\\Users\\kevin\\Documents\\wireshark-socket.io\\socketio_proto.lua")

OSX: Put socketio_proto.lua in ~/.wireshark/plugins/

Use:

Select a Socket.IO packet. Extra information is displayed.

Optional: enter websocket in the Wireshark filter (and press enter).
Optional: customize the column display by adding Custom columns SocketIO.msgno and/or SocketIO.reply_duration.