ZyXEL Communications P-791R V2 - V3.40 Guía de usuario descargar pdf (Pagina 173)

Prestige 791R G.SHDSL Router

Firmware and Configuration Maintenance 15-5

4. You have an SMT console session running.

15.2.6 Backup Configuration Using TFTP

The Prestige 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 Prestige and log in. Because TFTP does not

have any security checks, the Prestige 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 Prestige. 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 Prestige 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 Prestige to the computer and “binary” to set

binary transfer mode.

15.2.7 TFTP Command Example

The following is an example TFTP command:

tftp [-i] host get rom-0 config.rom

where “i” specifies binary image transfer mode (use this mode when transferring binary files), “host” is the

Prestige IP address, “get” transfers the file source on the Prestige (rom-0, name of the configuration file on

the Prestige) to the file destination on the computer and renames it config.rom.

15.2.8 GUI-based TFTP Clients

The following table describes some of the fields that you may see in GUI-based TFTP clients.

1 2 ... 168 169 170 171 172 173 174 175 176 177 178 ... 236 237

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ZyXEL Communications P-791R V2 - V3.40 Guía de usuario Pagina 173