VPN Networking

  1. VPN Protocols and Standards
    1. Legacy Protocols
      1. Point-to-Point Tunneling Protocol
        1. Protocol Architecture
          1. Security Limitations
            1. Microsoft Implementation
              1. Deprecation Status
              2. Layer 2 Tunneling Protocol
                1. L2TP Framework
                  1. L2TP over IPsec Implementation
                    1. Cisco L2F Integration
                      1. Performance Characteristics
                    2. IPsec Protocol Suite
                      1. IPsec Architecture
                        1. Security Associations
                          1. Security Policy Database
                            1. Security Association Database
                            2. IPsec Modes
                              1. Transport Mode
                                1. Tunnel Mode
                                  1. Mode Selection Criteria
                                  2. IPsec Protocols
                                    1. Authentication Header
                                      1. Encapsulating Security Payload
                                        1. Protocol Combination Strategies
                                        2. Internet Key Exchange
                                          1. IKEv1 Protocol
                                            1. IKEv2 Enhancements
                                              1. Phase 1 Negotiation
                                                1. Phase 2 Negotiation
                                                  1. Dead Peer Detection
                                                2. SSL/TLS-Based VPNs
                                                  1. SSL/TLS Protocol Foundation
                                                    1. Handshake Process
                                                      1. Record Protocol
                                                        1. Alert Protocol
                                                        2. SSL VPN Implementations
                                                          1. Clientless SSL VPNs
                                                            1. Full Tunnel SSL VPNs
                                                              1. Application Proxy Methods
                                                              2. Certificate Management
                                                                1. Certificate Authorities
                                                                  1. Certificate Validation
                                                                    1. Certificate Revocation
                                                                  2. Modern VPN Protocols
                                                                    1. OpenVPN
                                                                      1. SSL/TLS Integration
                                                                        1. Custom Protocol Design
                                                                          1. Configuration Flexibility
                                                                            1. Cross-Platform Support
                                                                              1. Plugin Architecture
                                                                              2. WireGuard
                                                                                1. Cryptographic Primitives
                                                                                  1. Noise Protocol Framework
                                                                                    1. Kernel Integration
                                                                                      1. Performance Optimization
                                                                                        1. Configuration Simplicity
                                                                                        2. SoftEther VPN
                                                                                          1. Multi-Protocol Support
                                                                                            1. Virtual Hub Architecture
                                                                                              1. NAT Traversal Capabilities
                                                                                                1. Management Interface

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                                                                                            2. Core Components of VPN Architecture

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                                                                                            4. VPN Architecture Types