def connect(host, port):
    """
        Connect the transport to an address.

        This changes it to connected mode. Datagrams can only be sent to
        this address, and will only be received from this address. In addition
        the protocol's connectionRefused method might get called if destination
        is not receiving datagrams.

        @param host: an IP address, not a domain name ('127.0.0.1', not 'localhost')
        @param port: port to connect to.
        """
