A network administrator is evaluating remote access solutions and decides to deploy Layer 2 Tunneling Protocol combined with IPsec (L2TP/IPsec) for remote employees. Which of the following statements correctly describe the functions and security characteristics of this combined VPN solution? (Select TWO.)
- L2TP handles the creation of the logical tunnel and packet encapsulation, but relies on IPsec to provide data encryption and confidentiality.Cevap
- IPsec provides authentication, data integrity, and encryption services for the encapsulated L2TP traffic across untrusted networks.Cevap
- CL2TP natively operates at Layer 3 to provide AES-256 encryption without requiring auxiliary security protocols.
- DIPsec uses TCP port 443 to establish clientless web browser sessions that encapsulate L2TP frames.
Cevap
L2TP handles tunnel creation and frame encapsulation while relying on IPsec for encryption, and IPsec provides authentication, data integrity, and encryption services for the L2TP traffic.
L2TP provides frame encapsulation and tunnel creation, but because it has no native cryptographic controls, it relies on IPsec to deliver payload encryption, host authentication, and data integrity across untrusted network paths.
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Anahtar Kavram
Dual-Protocol L2TP/IPsec VPN Operation
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