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I'm new to wireless networking and I have a question that might be dumb.

Regular 802.11 uses AES/TKIP encryption. CAPWAP uses DTLS encryption, but CAPWAP is also 802.11 spec. Can you please explain how this works? Thank you.

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    Dec 17, 2020 at 19:45

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CAPWAP is an application-layer protocol for wireless management. It's got its own DTLS encryption (in what you may call a sublayer).

Usually, CAPWAP runs over the wired network between the wireless controller and the WAPs. If you run it over a (probably separate) 802.11 link, the encapsulating frames are additionally WPA2/3-encrypted on the data link layer.

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  • Thanks for your answer. So it's like double encryption then when it comes to wireless.
    – mikal
    Aug 15, 2020 at 13:30

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