What is a feature that enables VPN connections to maintain a secure VPN session without employing Stateful Inspection?

Wire Mode is a feature that allows VPN connections to maintain a secure session without using Stateful Inspection. In Wire Mode, packets are forwarded at the link layer without requiring state information about the connections. This means that the firewall processes the traffic by allowing all packets to traverse without creating and maintaining sessions for them, which is particularly useful for VPN connections where high throughput and minimal latency are critical.

Using Wire Mode, the VPN can operate efficiently, especially in scenarios involving protocols that might not work well with traditional Stateful Inspection. This configuration ensures that the encapsulated VPN traffic is handled seamlessly, making it easier to integrate VPN services into a network where minimal delay is paramount.

In contrast, Stateful Mode, VPN Routing Mode, and Stateless Mode are associated with other methodologies of handling traffic and establishing sessions, each having its own advantages and limitations. However, they do not specifically refer to the mechanism that allows VPN connections to operate securely without maintaining the states of the packets, which is where Wire Mode excels.