ZyXEL Communications ZyXEL ZyAIR 100 - Manual (Page 455)

ZyWALL 10~100 Series Internet Security Gateway
Firmware and Configuration File Maintenance 34-15
Step 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.
Step 4. Launch the TFTP client on your computer and connect to the ZyWALL. Set the transfer mode to
binary before starting data transfer.
Step 5. Use the TFTP client (see the example below) to transfer files between the ZyWALL and the
computer. The file name for the firmware is “ras”.
Note that the telnet connection must be active and the ZyWALL 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. For UNIX, use “get” to transfer from the ZyWALL to the computer, “put” the other
way around, and “binary” to set binary transfer mode.
34.5.6 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
ZyWALL’s IP address, “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
ZyWALL).
Commands that you may see in GUI-based TFTP clients are listed earlier in this chapter.
34.5.7 Uploading Via Console Port
FTP or TFTP are the preferred methods for uploading firmware to your ZyWALL. However, in the event of
your network being down, uploading files is only possible with a direct connection to your ZyWALL via
the console port. Uploading files via the console port under normal conditions is not recommended since
FTP or TFTP is faster. Any serial communications program should work fine; however, you must use the
Xmodem protocol to perform the download/upload.