2.2 Factory Default From Web Interface (Excluding Unit IP)
This option is used when you need to restore the unit to semi-factory default, leaving only the unit network access configuration unchanged.
Note: By keeping the unit IP address unchanged, the remote user
            maintains the capability to access the unit remotely, while most of the other unit
            parameters are restored to factory default. Only 
        running-config is
            restored to factory default. To make the factory default parameter changes permanent,
            you must save running-config into
            startup-config.To save running-config into startup-config, perform the
            following steps:
- Use the web interface to access the web page Maintenance > Factory > Factory Default to initiate the factory default process.
 - Wait several seconds to let the factory default process finish, followed by Configuration Factory Reset Done.
 - To save the new running default configuration, click Maintenance > Configuration > Save Startup-Config.
 
