ZyXEL Communications VES-1000 Series User Manual page 88

VES-1000 Series Ethernet Switch
COMMAND
Transfer Type
Initial Remote
Directory
Initial Local Directory
10.2.5 TFTP and FTP over WAN Restrictions
TFTP and FTP over WAN will not work when:
•
Telnet service is disabled in menu 24.11.
•
The IP address(es) in the Secured Client Sets menu (menu 24.11.1) does not match the client IP address. If it
does not match, the VES-1000 Series switch will disconnect the Telnet session immediately.
•
There is an SMT console session running.
10.2.6 Backup Configuration Using TFTP
The VES-1000 Series switch supports the up/downloading of the firmware and the configuration file using TFTP
(Trivial File Transfer Protocol) over LAN. Although TFTP should work over WAN as well, it is not
recommended.
To use TFTP, your computer must have both telnet and TFTP clients. To backup the configuration file, follow the
procedure shown next.
Use telnet from your computer to connect to the VES-1000 Series switch and log in. Because TFTP
Step 1.
does not have any security checks, the VES-1000 Series switch records the IP address of the telnet client
and accepts TFTP requests only from this address.
Put the SMT in command interpreter (CI) mode by entering 8 in Menu 24 – System Maintenance.
Step 2.
Enter command "sys stdio 0" to disable the SMT timeout, so the TFTP transfer will not be interrupted.
Step 3.
Enter command "sys stdio 5" to restore the five-minute SMT timeout (default) when the file transfer is
complete.
Launch the TFTP client on your computer and connect to the VES-1000 Series switch. Set the transfer
Step 4.
mode to binary before starting data transfer.
Use the TFTP client (see the example below) to transfer files between the VES-1000 Series switch and
Step 5.
the computer. The file name for the configuration file is "rom-0" (rom-zero, not capital o).
Note that the telnet connection must be active and the SMT 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 VES-1000 Series switch to the computer and "binary" to set
binary transfer mode.
10-4
Table 10-B General Commands for GUI-based FTP Clients
Transfer files in either ASCII (plain text format) or in binary mode.
Specify the default remote directory (path).
Specify the default local directory (path).
DESCRIPTION
Firmware and Configuration File Maintenance