IKEv2 vs IKEv1: A Comparison of Key Differences and Similarities

IKEv2 vs IKEv1

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Which statement is true about IKEv2 and IKEv1?



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A. B. C. D.


IKE (Internet Key Exchange) is a protocol used for establishing secure communication channels between two parties, such as two hosts or a host and a gateway. IKEv1 and IKEv2 are different versions of this protocol, with some differences in features and functionality.

A. The statement "IKEv2 can be configured to use EAP, but IKEv1 cannot" is true. EAP (Extensible Authentication Protocol) is a protocol used for authentication in network connections. IKEv2 supports EAP authentication, which allows for a wider range of authentication methods. On the other hand, IKEv1 only supports a limited set of authentication methods, such as pre-shared keys and digital certificates.

B. The statement "IKEv2 can be configured to use AES encryption, but IKEv1 cannot" is false. Both IKEv1 and IKEv2 support AES encryption, as well as other encryption algorithms.

C. The statement "IKEv2 can be configured to interoperate with IKEv1 on the other end" is true. IKEv2 is designed to be backward-compatible with IKEv1, which means that an IKEv2-enabled device can communicate with an IKEv1-enabled device if configured properly. This interoperability can be useful in situations where an upgrade to IKEv2 is not feasible or desirable.

D. The statement "IKEv2 consumes more bandwidth than IKEv1" is false. In fact, IKEv2 is designed to be more efficient than IKEv1, particularly in terms of bandwidth usage. IKEv2 uses fewer round trips and requires less overhead, which can result in faster and more efficient key exchange.

In summary, the correct answer is A. IKEv2 can be configured to use EAP, but IKEv1 cannot.