I2p-cp -

: The client sends a protocol version byte (typically 0x2A ) to ensure compatibility.

Requests the router to resolve a human-readable name (like example.i2p ) to a cryptographic Destination. i2p-cp

Notifies the client that a new message has been received from the network. : The client sends a protocol version byte

: A CreateSession message is sent, containing the application's configuration and its cryptographic Destination (public key). i2p-cp