When you make changes to the configuration of Branch Gateway, you must save the changes to make them permanent. Branch Gateway has two sets of configuration information:

• Running configuration

• Startup configuration

Branch Gateway operates according to the running configuration. When Branch Gateway is reset, Branch Gateway erases the running configuration and loads the startup configuration as the new running configuration. When you change the configuration of Branch Gateway, your changes affect the running configuration.  If you do not save the changes and if Branch Gateway is reset, the changes are lost.

You can restore a backup copy of the configuration from the SCP, HTTPS, or TFTP server or the USB flash drive. When you restore the backup copy of the configuration, the backup copy becomes the new running configuration on the Branch Gateway.