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IDS vs IPS - ACLs and Firewalls | Network Design | Repovive

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Network Design26 sections · 911 units44h total

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IDS vs IPS

Comparing detection options

Here's how IDS and IPS compare:

Feature	IDS	IPS
Position	Out-of-band	Inline
Action	Alert only	Block and alert
Latency impact	None	Some
False positive risk	Alert fatigue	Blocked legitimate traffic

Many organizations deploy both. IPS blocks known threats inline. IDS monitors for new patterns. NGFWs often integrate IPS functionality, giving you stateful filtering and intrusion prevention in one device.