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Volumetric and Flood Concepts – Defender View
Volumetric and Flood Concepts – Defender View A volumetric attack floods a target with so much traffic that the network pipe fills up. You don’t need the perfect flood to defend. You need traffic baselines , alerts on sudden spikes, and a way to ask your ISP or cloud to scrub traffic. Design the ori
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What this card says
What it is
A volumetric attack floods a target with so much traffic that the network pipe fills up.
Defender’s view
You don’t need the perfect flood to defend. You need traffic baselines, alerts on sudden spikes, and a way to ask your ISP or cloud to scrub traffic.
Why it matters for security
Design the origin to fail soft (cache, queue, show 503) instead of crashing completely.
| Red team (attacker) does | Blue team (defender)… |
|---|---|
| UDP flood to saturate uplink | Upstream scrubbing; drop UDP to unused ports at border;… |
| HTTP GET flood on search / login | CDN cache; rate limit; CAPTCHA / bot management; WAF |
| Spoofs sources where protocol allows | BCP38 / anti-spoof at ISP; don't rely on source IP alone |
Learn more in the lesson: 40.2 Volumetric and Flood Concepts – Defender View