Tunneling works by encapsulating packets, basically wrapping packets inside of other packets. In an encapsulated packet, the header and payload of the first packet goes inside the payload section of the surrounding packet so the original packet essentially becomes the payload.

Terminating encapsulated tunnel traffic enables multiple applications including virtual network monitoring. IntellaTap-VM virtual TAPs use tunnel encapsulation to forward VM traffic of interest to the monitoring network while the IntellaView platform's Tunnel Termination feature decapsulates the tunnel traffic to ensure tool compatibility.

Network tunelling is an easy way to transport various traffic from once place to another, such as from blind spots or remote sites to the tools that need to see it, regardless of the environment.