ZyXEL Communications B-1000 User Manual

Page of 231
  
ZyAIR Access Point Series User’s Guide 
Firmware and Configuraiton File Maintenance     
19-9 
Figure 19-7 FTP Session Example 
More commands that you may find in third party FTP clients, are listed earlier in this chapter. 
19.4.4 TFTP File Upload 
The ZyAIR also 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 transfer the firmware and the 
configuration file, follow the procedure shown next: 
Step 1.  Use telnet from your computer to connect to the ZyAIR and log in. Because TFTP does not have 
any security checks, the ZyAIR 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 SMT timeout, so the TFTP transfer will not be 
interrupted. Enter command “sys stdio 5” to restore the five-minute SMT timeout (default) when 
the file transfer is complete. 
Step 4.  Launch the TFTP client on your computer and connect to the ZyAIR. 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 ZyAIR and the 
computer. The file name for the firmware is “ras” and 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 ZyAIR to the computer, “put” the other way 
around, and “binary” to set binary transfer mode. 
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: 327680 bytes sent in 1.10Seconds 297.89Kbytes/sec. 
ftp> quit