ESP is a protocol within the IPSec suite that provides confidentiality, integrity, and authentication for network traffic by encrypting packet payloads.
Key Features of ESP:
Operates at the network layer.
Ensures data confidentiality and protects against tampering.
Why Not Other Options:
B. Text-based communication protocol: ESP is not text-based; it deals with encrypted data.
C. Uses TCP port 22: ESP does not operate at the application layer.
D. Uses UDP port 22: Incorrect; ESP typically uses protocol number 50.
EC-Council Emphasis:
ESP’s role in securing IP communications highlights its importance in modern security architectures.
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