5-16Please set application file type in cf:M=MAIN B=BACKUP S=SECURE N=NOTYPE**************************************************************************NO. Size(B) Time Type Name0 15561860 Jul-10-2006 14:14 N cf:/main.bin**************************************************************************Enter File Name:cf:/main.binSelect the application program as the main boot file, and enter its complete path and file name.Modify this file Attribute:1. +Main2. -Main3. +Backup4. -Backup5. ExitEnter your choice(1-5):1Enter "1" to set the selected application program to be the main boot file, i.e. the default boot file of thesystem.Step 6: Enter <5> to exit to the main BootROM menu. Enter <1> to boot from the CF card.z The file in the CF card will be overwritten if the file name being input is the same with the original filename in the CF card.z Make sure the space on memory is sufficient. Or, the system prompts insufficient space:Updating File main.binInsufficient CF Card space or failed device writing operationz The file updated will directly replace the original file of this type to become the only applicationprogram. The main.bin file downloaded here will replace the original M file directly to become themain boot program.z Refer to section “Files” for detailed descriptions of file types.z Do not include path information in the filename input during upgrade.z You can set the main/backup attributes for the startup file under the root directory o the device only.Maintaining Application Program and Configurations ThroughCommand LinesAfter booting the router normally, you can upgrade and backup application program and backup andrecover configurations in command line mode.Maintaining the Router with TFTP ServerThe TFTP service provided by the router is TFTP Client — the router serves as TFTP Client, and the fileserver serves as TFTP Server. You can input commands to upload the configuration file and applicationprogram of the router to the file server, or download configuration file or application program to therouter from the file server.