Hi Guys , im pretty new to fortigate and after watching more training i just get more confuse .
Just to clarification i have some question , if our policy is in Flow-based Then ips cannot act on encrypted traffic ? so thats why we put it on proxy mode to intercept the traffic and put the IPS+antivirus in between . is This statement true or not ? thanks in advance
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Hello,
Thank you for your question. No, even when you have flow-based inspection only, IPS and AV can match traffic based on signatures. Difference is that flow-based inspection is inspecting traffic packet by packet without any buffering, while proxy-based is able to buffer the packets, inspect it and then block/permit etc. Because of this, proxy-based inspection can provide you more control over some features plus some features are available only in proxy-based inspection.
https://docs.fortinet.com/document/fortigate/6.2.0/cookbook/721410/about-inspection-modes
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