Internet Key Exchange (IKE)

Posted by arlene

IKE defines the mechanism used by the endpoints of the VPN to establish a secure connection and exchange encryption keys and other information pertinent to a secure connection. IKE uses public- key techniques. If you recall, the public key half of a key pair can be known by anyone, as long as the private-key half […]

Encapsulation Security Payload (ESP)

Posted by arlene

ESP is used to encrypt the payload, or the actual IP packet that is carried in the data portion of the packet. It operates in two modes: transport and tunnel.
In transport mode, ESP provides protection for the payload and for headers created by upper-level protocols, such as TCP, that ride inside the IP packet. In […]

Alexa Counter