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How do I upgrade/backup the ZyNOS firmware by using TFTP client program via LAN?

April 26, 2017backup client firmware LAN program TFTP upgrade ZyNOS

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How do I upgrade/backup the ZyNOS firmware by using TFTP client program via LAN?

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The ZyWALL allows you to transfer the firmware from/to ZyWALL by using TFTP program via LAN. The procedure for uploading ZyNOS via TFTP is as follows. Use the TELNET client program in your PC to login to your ZyWALL. Enter CI command ‘sys stdio 0’ in menu 24.8 to disable console idle timeout To upgrade firmware, use TFTP client program to put firmware in file ‘ras’ in the ZyWALL. After data transfer is finished, the ZyWALL will program the upgraded firmware into FLASH ROM and reboot itself. To backup your firmware, use the TFTP client program to get file ‘ras’ from the ZyWALL.