Question

How the problem of key exchange is addressed in ip sec?

Answer 1

Answer:

Improvements with IKEv2 The IKEv2 protocol was described in Appendix A of RFC 4306 in 2005. The following issues were addressed: ... Fewer cryptographic mechanisms: IKEv2 uses cryptographic mechanisms to protect its packets that are very similar to what IPsec ESP uses to protect the IPsec packets.

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