ZyXEL Communications B-1000 User Manual

Page of 231
ZyAIR Access Point Series User’s Guide 
19-4 
 
Firmware and Configuraiton File Maintenance   
Table 19-2 General Commands for Third Party FTP Clients 
COMMAND DESCRIPTION 
Initial Remote 
Directory 
Specify the default remote directory (path). 
Initial Local 
Directory 
Specify the default local directory (path). 
19.2.3 Backup Configuration Using TFTP 
The ZyAIR 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: 
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 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 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 and “binary” to set 
binary transfer mode. 
19.2.4 Example: TFTP Command 
The following is an example TFTP command: 
TFTP [-i] host get rom-0 config.rom