synchronized ( this ) {
            try {
                this.state = 1;
                DcerpcMessage bind = new DcerpcBind(this.binding, this);
                sendrecv(bind);
            }
            catch ( IOException ioe ) {
                this.state = 0;
                throw ioe;
            }
        }
    }


    /**
     * 
     * @param msg
     * @throws DcerpcException