IPsec

(IPsec) is an acronym for Internet Protocol security that provides authentication and encryption for Internet Protocol (IP) traffic. It is often used in Virtual Private Networks (VPNs) to secure communications between two or more devices. IPsec can be used in either transport mode or tunnel mode. In transport mode, IPsec encrypts and authenticates each packet… Read More

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Network Layer Overview

The network layer is the third layer of the seven-layer OSI model and is responsible for packet forwarding, including routing through intermediate nodes, and for delivery of packets to the upper layers at the destination node. The network layer provides connectivity between hosts by encapsulating data into datagrams (packets) and decapsulating datagrams at the destination… Read More

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