Encapsulating Security Payload (ESP) Overview

Function: ESP is a component of the IPsec protocol suite that encrypts IP packets to ensure their confidentiality and integrity. ESP Header Content: Contains information indicating which Security Association (SA) to use and includes the packet sequence number....

VPN Devices Overview

VPN Devices Function: Hardware or software used to create secure tunnels for encrypted communication over networks. IPsec Compatible VPNs Encryption Modes: Tunnel Mode: Encrypts the entire data package, including the IP header. Transport Mode: Encrypts only the...

VPN Protocols Overview

PPTP (Point to Point Tunneling Protocol) Layer: Data link layer of OSI. Connection: Supports only one single point-to-point connection per session. Use Case: Commonly used for dial-up networks. Security: Uses PPP for authentication and tunneling but does not support...

Virtual Private Networks (VPN) Overview

Virtual Private Network (VPN) Description: A VPN dynamically creates a secure communication link between two nodes over a public network like the internet. It allows for secure data transmission as if the devices were on a private network. Encapsulation: Data is...

Data Network Types Overview

Local Area Network (LAN) Description: A network limited to a small geographic area, such as a building or a group of buildings. It allows devices to share resources like printers, email, and files. Connections: Typically connected through copper wire or fiber optics....

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