How does FortiGate assist in mitigating DDoS attacks?

FortiGate mitigates DDoS attacks effectively through traffic anomaly detection and rate limiting. This approach allows the device to identify unusual patterns of traffic that may indicate a DDoS attack, such as a sudden influx of requests targeting a specific resource. By applying rate limiting, FortiGate can control the amount of traffic allowed to reach its network services, thereby preventing any single IP address from overloading the system.

The strategy is particularly useful as it helps maintain service availability for legitimate users while filtering out malicious traffic that can disrupt normal operations. The use of traffic anomaly detection also means that FortiGate can adaptively respond to various forms of DDoS attacks, making it a robust defense mechanism.

In contrast, simply creating additional IP addresses does not inherently mitigate DDoS threats as it does not address the underlying issue of excessive traffic targeting a single point. Blocking all incoming connections would result in denial of service to legitimate users and is not a feasible long-term strategy. Reinstalling software automatically doesn't directly relate to DDoS mitigation either, as it does not prevent or reduce the impact of an ongoing attack. Thus, the ability to detect anomalies and impose rate limits is crucial for effectively mitigating DDoS attacks.