The configuration file contains only CLI commands for configuration, which its settings are
applied to the device, in addition to the device's current configuration. The device resets
only if the configuration file contains an explicit command instructing it to reset.
To enable Zero Configuration, the customer needs to define the devices on the HTTPS
Redirect server by entering their MAC addresses and the configuration file URL. This may
be done either through the corresponding Web interface or through SOAP/XML interface
(that may be integrated with the Service Provider’s provisioning system). For more
information, contact AudioCodes support.
If the regular Automatic Update process succeeds, the device repeats the Zero
Configuration process only if it undergoes a reset to factory defaults. If the Automatic
Update process fails, the device repeats the Zero Configuration process at the next device
reset or power up.
For security, communication between the device and the HTTPS Redirect server is
encrypted (HTTPS) and setup with mutual authentication. The device uses a special
factory-set certificate to authenticate itself with the HTTPS Redirect server and to verify
authenticity of the latter. If the redirect URL (where the configuration file is stored) also
uses the HTTPS protocol, the device can use a regular certificate or the Zero Configuration
certificate to authenticate itself and validate the server’s certificate if a trusted root
certificate (regular) is configured. This is determined by the AupdUseZeroConfCerts
parameter.
Notes:
• If the Automatic Update feature has been configured, the Zero
Configuration process is performed first. Only after Zero Configuration
completes (successfully or not), does the Automatic Update process
begin.
• If the device is configured with multiple WAN interfaces, Zero
Configuration is attempted on all configured WAN interfaces,
sequentially.
• The recommended method for using both Zero Configuration and
Automatic Update is as follows:
√ Zero Configuration is done to redirect the non-configured device to
the URL of the provisioning server which contains only the
configuration for the Automatic Update feature (e.g., CLI script URL
and timeout for periodic update check).
√ Once the Zero Configuration process completes (i.e., the device
has downloaded the configuration file and applied the Automatic
Update settings) without undergoing a reset, the Automatic Update
mechanism begins.
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