What is the default management IP address of a FortiGate unit?

The default management IP address of a FortiGate unit is 192.168.1.99. This IP address is set to allow administrators to easily connect to the device for initial setup and configuration.

When a FortiGate unit is deployed and powered on for the first time, it assumes this default management IP configuration, which falls within the common private IP address range. Therefore, network administrators can quickly access the unit via a web browser or management console once they connect their management workstation to the appropriate port that typically serves as the management interface.

In network design, having a standardized default IP address helps streamline the deployment process, enabling quick access for configuration tasks without sophisticated network setups. Other options listed may represent private or reserved IPs, but they do not reflect the default settings found on FortiGate appliances.