JYes, a static IP is required to ensure the consistency of external file downloads. If the Qiata File Transfer Appliance is not intended for sharing with external users, it can be used without static IP.
Each transfer is made via HTTP using SSL or HTTPS. External users can only access the service through a unique link sent to them. They do not access the service directly. Internal users can be assigned to specific IP areas to prevent access from the Internet. The files on the system are "hashed" to make direct identification impossible. Transfers can also be provided with an individual password for the access of individual users.
The appliance is a hardware that has been specially designed for the particular application. It is not necessary to administer the entire operating system like with a PC or a server. The administrator only has to manage the appliance specific functions. It is used without a monitor and is usually administered with a serial console or via the network using a browser. If the system should fail or need to be reset, there is no need to reboot the entire operating system or application. The administrator just has to follow the reset instructions and the appliance will be returned to its factory state.