ZyXEL Communications VES-1000 - Manual (Page 95)

VES-1000 Series Ethernet Switch
Firmware and Configuration File Maintenance 10-11
Figure 10-15 FTP Session Example of Firmware File Upload
More commands (found in GUI-based FTP clients) are listed earlier in this chapter.
Refer to section 10.2.5 to read about configurations that disallow TFTP and FTP over WAN.
10.4.5 TFTP File Upload
The VES-1000 Series switch also supports the uploading of firmware files 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 transfer the firmware and the
configuration file, follow the procedure shown next.
Step 1. Use telnet from your computer to connect to the VES-1000 Series switch and log in. Because TFTP
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.
Step 2. Put the SMT in command interpreter (CI) mode by entering 8 in Menu 24 – System Maintenance.
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 VES-1000 Series switch. 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 VES-1000 Series switch and
the computer. The file name for the firmware is “ras”.
Note that the telnet connection must be active and the VES-1000 Series switch 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, “put” the
other way around, and “binary” to set binary transfer mode.
10.4.6 TFTP Upload Command Example
The following is an example TFTP command:
331 Enter PASS command
Password:
230 Logged in
ftp> bin
200 Type I OK
ftp> put firmware.bin ras
200 Port command okay
150 Opening data connection for STOR ras
226 File received OK
ftp: 1103936 bytes sent in 1.10Seconds
297.89Kbytes/sec.
ftp> quit