IPsec VPN Protocol

Protocol suite authenticating and encrypting IP packets at the network layer for VPN tunnels.

Core Principles & Analysis

• Operates in either transport mode or tunnel mode encapsulation.
• Combines Authentication Headers (AH) and Encapsulating Security Payloads (ESP).
• Standardized by the IETF and used in most site-to-site VPN tunnels.

Specifications & Metrics

• LAYER: Network (L3)