What is Encapsulating Security Payload (ESP)?
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What is Encapsulating Security Payload (ESP)?
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Encapsulating Security Payload (ESP) is an IPSec protocol that provides confidentiality with authentication, integrity, and anti-replay. ESP can be used alone in combination with Authentication Header (AH). ESP can also be used nested with the Layer Two Tunneling Protocol (L2TP). Normally, ESP does not sign the entire packet unless it is being tunneled. Typically, only the data payload is protected, not the IP header.
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