Factory configuration 69SmartWare Software Configuration Guide 5 • System image handlingThe bootloader ensures that basic operations, network access, and downloads are possible in case of interruptedor corrupted application image downloads.After downloading an application image (that is, new system software/software upgrade), the bootloaderensures that basic operations, network access, and downloads are possible in case of interrupted or corruptedapplication image downloads. After downloading an application image, the bootstrap will only switch to thenewly loaded application image if it is valid. If it is not valid, the bootstrap still uses the application imagewhich existed prior to doing a software upgrade.If the application image is valid, it is started and SmartWare is brought into operation module by module.During this system initialization phase (when the message Press reset button to restore factory defaults... appearson the console screen), the status of the reset button on the back panel of the SmartNode is checked. If the but-ton has been pressed, the factory configuration is loaded into the volatile memory and is used to parameterizethe SmartWare (not available for SN4xxx). If the button has not been pressed, the startup configuration isloaded into the volatile memory and is used to parameterize the SmartWare.Factory configurationSmartNodes are delivered with a factory configuration stored in the logical region nvram: of the memory. It is usedto initially parameterize the network and component settings of SmartWare, which makes sense at the very begin-ning. Moreover, in case of SmartWare malfunction, you can reset to the initial state by reloading the factory con-figuration. The factory configuration consists of the default settings for the IP networking subsystem.Once the user-specific configuration is created and stored as startup configuration, the factory configuration isno longer used but it remains in the persistent memory. It is possible to switch back to the factory configura-tion at any time during the operation of a SmartNode.Default Startup ConfigurationThe SmartNodes delivered from the factory contain both a factory configuration and a default startup configu-ration. While the factory configuration contains only basic IP connectivity settings, the default startup config-uration includes settings for most SmartWare functions. Note that if you press and hold the system button(Reset) for 5 seconds the factory configuration is copied onto the startup configuration (overwrite). The defaultstartup config is then lost.IP Addresses in the Factory ConfigurationThe factory configuration contains the following IP interfaces and address configurations bound by the Ether-net ports 0/0 and 0/1:interface eth0ipaddress dhcpmtu 1500interface eth1ipaddress 192.168.1.1 255.255.255.0mtu 1500Avoid downloading any system image if you do not completelyunderstand what you have to do!IMPORTANT
