ZyXEL Communications Prestige 861H-G1, User Manual

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Prestige 861H User’s Guide
26-10 Firmware and Configuration File Maintenance
1.
Use telnet from your computer to connect to the Prestige and log in. Because TFTP does not
have any security checks, the Prestige records the IP address of the telnet client and accepts
TFTP requests only from this address.
2.
Put the SMT in command interpreter (CI) mode by entering 8 in Menu 24 – System
Maintenance.
3.
Enter the command “sys stdio 0” to disable the console timeout, so the TFTP transfer will not
be interrupted. Enter “command sys stdio 5” to restore the five-minute console timeout
(default) when the file transfer is complete.
4.
Launch the TFTP client on your computer and connect to the Prestige. Set the transfer mode to
binary before starting data transfer.
5.
Use the TFTP client (see the example below) to transfer files between the Prestige and the
computer. The file name for the firmware is “ras”.
Note that the telnet connection must be active and the Prestige in CI mode before and during the
TFTP transfer. For details on TFTP commands (see following example), please consult the
documentation of your TFTP client program.
26.4.6 TFTP Upload Command Example
The following is an example TFTP command:
tftp [-i] host put firmware.bin ras
where “i” specifies binary image transfer mode (use this mode when transferring binary files),
“host” is the Prestige’s IP address and “put” transfers the file source on the computer
(firmware.bin – name of the firmware on the computer) to the file destination on the remote host
(ras - name of the firmware on the Prestige).
Commands that you may see in GUI-based TFTP clients are listed earlier in this chapter.