This write-only object triggers a transfer of a named file from a TFTP server into the router's flash memory, with the value set to the flash entry name to write and the object instance identifying the TFTP host's IP address. An admin uses this to push a new firmware image or configuration file from a TFTP server onto the router. For example, an admin might write "newimage.bin" to this object, instanced with the TFTP server address, to load new firmware onto the router.