A network engineer wants to establish a site-o-site VPN tunnel using a protocol that allows for both data confidentially and authentication. Which of the following is the best choice?
A network engineer wants to establish a site-o-site VPN tunnel using a protocol that allows for both data confidentially and authentication. Which of the following is the best choice?
Encapsulating Security Payload (ESP) is a protocol that provides both data confidentiality (encryption) and authentication within the IPsec suite. While IPsec is indeed a comprehensive suite of protocols for securing internet protocol communications, ESP specifically handles the encryption and authentication of the data, making it the most appropriate choice when a single protocol is required for both confidentiality and authentication.
IPSec is more accurately a suite of protocols, ESP the protocol within IPSec that authorizes and encrypts data. The question states a singular protocol must be the right answer.
It was on my exam (April 25th, 2024). I chose 'IPsec' in the exam, but it seems 'ESP' could be the answer according to the IBM's documentation - https://www.ibm.com/docs/en/zos/2.4.0?topic=ipsec-ah-esp-protocols Please someone confirms the correct answer of this question.
I believe it will be ESP, as IPsec encompasses both ESP and AH. So I believe the wording on this question is very intentional when it states "protocol" as a singular.
ESP stands for **Encapsulating Security Payload**. It is a component of the IPsec (Internet Protocol Security) suite used to provide confidentiality, data integrity, and authentication of IP packets. ESP encrypts the payload and encapsulating headers of each packet, protecting the data from eavesdropping and tampering during transmission. It can operate in two modes: transport mode, which only encrypts the payload, and tunnel mode, which encrypts the entire IP packet. C
ESP is the likely answer. The question asked for the protocol and ESP is the only one in IPsec that does authorization and encryption (confidentiality). AH is the other security protocol in IPsec and it does authorization but not encryption. IPsec is a suite of protocols. IKE is key management.
IPSec most likely