Chapter 3. Comparison of IKEv1 and IKEv2
This chapter describes the history of the Internet Key Exchange protocol and examines the differences between the Internet Key Exchange version 1 (IKEv1) and Internet Key Exchange version 2 (IKEv2) protocols. Details are given in the differences of the exchanges and the rationale for the decisions made when differences were introduced between both protocols.
IKEv1 and IKEv2 are incompatible protocols, so you will never have an IKEv1 device communicating with an IKEv2 device. Both protocols achieve the same goals, but in totally different manners. These differences are covered in detail below.
IKEv2 introduces a number of features that are not available in IKEv1, such as the use of next-generation encryption ...
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