Chapter 29 Tools
1Use telnet from your computer to connect to the ZyXEL Device and log in. Because TFTP does not have any security checks, the ZyXEL Device records the IP address of the telnet client and accepts TFTP requests only from this address.
2Enter command “sys stdio 0” to disable the management idle timeout, so the TFTP transfer will not be interrupted. Enter command “sys stdio 5” to restore the five- minute management idle timeout (default) when the file transfer is complete.
3Launch the TFTP client on your computer and connect to the ZyXEL Device. Set the transfer mode to binary before starting data transfer.
4Use the TFTP client (see the example below) to transfer files between the ZyXEL Device and the computer. The file name for the configuration file is
Note that the telnet connection must be active 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 ZyXEL Device to the computer and “binary” to set binary transfer mode.
29.7.5 TFTP Command Configuration Backup ExampleThe following is an example TFTP command:
tftp
where “i” specifies binary image transfer mode (use this mode when transferring binary files), “host” is the ZyXEL Device IP address, “get” transfers the file source on the ZyXEL Device
The following table describes some of the fields that you may see in
Table 180 General Commands for
COMMAND | DESCRIPTION |
Host | Enter the IP address of the ZyXEL Device. 192.168.1.1 is the ZyXEL Device’s default IP |
| address when shipped. |
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Send/Fetch | Use “Send” to upload the file to the ZyXEL Device and “Fetch” to back up the file on your |
| computer. |
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Local File | Enter the path and name of the firmware file (*.bin extension) or configuration file (*.rom |
| extension) on your computer. |
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|
Remote File | This is the filename on the ZyXEL Device. The filename for the firmware is “ras” and for |
| the configuration file, is |
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|
Binary | Transfer the file in binary mode. |
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Abort | Stop transfer of the file. |
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Refer to Section 29.3 on page 408 to read about configurations that disallow TFTP and FTP over WAN.
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