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ZyWALL 2 and ZyWALL 2WE
Firmware and Configuration File Maintenance 22-1
Chapter 22
Firmware and Configuration File
Maintenance
This chapter tells you how to back up and restore your configuration file as well as upload new
firmware and a new configuration file.
22.1 Filename Conventions
The configuration file (often called the romfile or rom-0) contains the factory default settings in the menus
such as password, DHCP Setup, TCP/IP Setup, etc. It arrives from ZyXEL with a “rom” filename
extension. Once you have customized the ZyWALL's settings, they can be saved back to your computer
under a filename of your choosing.
ZyNOS (ZyXEL Network Operating System sometimes referred to as the “ras” file) is the system firmware
and has a “bin” filename extension. With many FTP and TFTP clients, the filenames are similar to those
seen next.
ftp> put firmware.bin ras
This is a sample FTP session showing the transfer of the computer file " firmware.bin" to the ZyWALL.
ftp> get rom-0 config.cfg
This is a sample FTP session saving the current configuration to the computer file “config.cfg”.
If your (T)FTP client does not allow you to have a destination filename different than the source, you will
need to rename them as the ZyWALL only recognizes “rom-0” and “ras”. Be sure you keep unaltered
copies of both files for later use.
The following table is a summary. Please note that the internal filename refers to the filename on the
ZyWALL and the external filename refers to the filename not
on the ZyWALL, that is, on your computer,