Tunnels and VPNs
Tunneling works by encapsulating packets: wrapping packets inside of other packets.
Tunneling is often used in virtual private networks (VPNs). It can also set up efficient and secure connections between networks, enable the usage of unsupported network protocols, and in some cases allow users to bypass firewalls.

Virtual Private Networks

Network traffic in a tunnel is fully encrypted, but it is decrypted once it reaches either the network or the user's device.
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