Internet Key Exchange (IKE)/IKEv2 plays a crucial role in an HPE Aruba Networking client-to-site VPN

by helping to negotiate the IPsec Security Association (SA) automatically and securely. IKE/IKEv2

handles the authentication and key exchange processes, ensuring that both the client and the VPN

gateway can establish a secure IPsec tunnel.

1. SA Negotiation: IKE/IKEv2 automates the negotiation of the Security Association, which defines

the parameters for the secure IPsec tunnel.

2. Secure Authentication: It provides a secure method for authenticating the communicating parties

and exchanging cryptographic keys.

3. Efficiency: Using IKE/IKEv2 simplifies the setup and maintenance of secure VPN connections,

enhancing the overall security and reliability of the VPN.

Reference: Documentation on IPsec VPNs and IKE/IKEv2 protocols explains how these protocols

facilitate secure and automated negotiation of IPsec tunnels, ensuring robust client-to-site VPN

connections.