Janice is explaining how IPSec works to a new network administrator. She is trying to explain the role of IKE. Which of the following most closely matches the role of IKE in IPSec?

Internet key exchange (IKE) is used to set up security associations (SAs) on each end of the tunnel. The security associations have all the settings (i.e., cryptographic algorithms, hashes) for the tunnel. IKE is not directly involved in encrypting or authenticating. IKE itself does not establish the tunnel—it establishes the SAs.