Tunnel Interface Architecture Diagram - Network Security Visualization #95964 (License: Personal Use)

The image depicts a simplified network architecture where two physical interfaces connect to a central tunnel interface. Encrypted packets flow in from the left, pass through a tunnel protection mechanism (shown as a red-and-blue layered cylinder), and emerge as cleartext packets on the right. Arrows indicate bidirectional packet flow, emphasizing the encapsulation/decapsulation process typical in VPN or IPsec tunnels.

Used in technical documentation, cybersecurity training, or networking tutorials to explain secure tunneling concepts such as IPsec, SSL/TLS, or GRE tunnels. Matches user intent for understanding how encryption is applied and removed at network boundaries.