179Nortel Business Secure Router 252 Configuration — AdvancedChapter 15Firmware and configuration file maintenanceThis chapter tells you how to backup and restore your configuration file, as wellas upload new firmware and configuration files.Filename conventionsThe configuration file (often called the romfile or rom-0) contains the factorydefault settings in the menus such as password, DHCP Setup and TCP/IP Setup. Itcomes with a rom filename extension. Once you have customized the BusinessSecure Router settings, they can be saved back to your computer under a filenameof your choosing.The system firmware (sometimes referred to as the ras file) has a bin filenameextension. With many FTP and TFTP clients, the filenames are similar to thoseseen next.ftp> put firmware.bin rasThis is a sample FTP session showing the transfer of the computer filefirmware.bin to the Business Secure Router.ftp> get rom-0 config.cfgThis is a sample FTP session saving the current configuration to the computer fileconfig.cfg.Note: Only use firmware for your Business Secure Router specificmodel. Refer to the label on the bottom of your Business Secure Router.
