CMPE 210 Lecture Notes - Lecture 3: Openstack, Advanced Message Queuing Protocol, Message Queue
Document Summary
Also known as vpnaas is the service provided for sharing the network over the internet. Vpn service provides multiple tunneling and security features, these features include static as well as dynamic routing. Tunneling means to create a secure link between two hosts that provides encryption to the data passed through it. Ipsec is one other important feature of vpnaas, ipsec stands for internet protocol security, Ipsec is responsible for providing end to end authentication and encryption to the data between hosts. When a packet is sent from an end to another through an ipsec vpn tunnel, the packet is encapsulated by an ipsec frame and an ip frame at the outer end, which is responsible for the data transmission. Authentication header, this service is responsible for the data authentication and for checking the data integrity during transmission. Encapsulating security payload also known as esp is responsible for authenticating the sender as well as provides the data encapsulation.
