Virtual Private Network Tunneling: How Encrypted Tunnels Work
How virtual private network tunneling creates secure, encrypted connections. Split tunneling, full tunneling, and protocol-level tunneling explained.
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What Is Private Network Tunneling?
Tunneling is the process of encapsulating your internet traffic inside an encrypted outer layer and sending it through a secure connection to the private network server. Think of it as placing your data inside an armored vehicle that travels through public roads — the outside world cannot see what is inside.
Types of Tunneling
- Full Tunnel: All internet traffic from your device goes through the private network. Maximum security — every app, every website, every service is encrypted
- Split Tunnel: Only selected apps or websites use the private network tunnel. Other traffic uses your regular connection. Useful for accessing local services while maintaining privacy for specific activities
- Inverse Split Tunnel: Everything uses the private network except specified apps or websites that bypass it
Protocol-Level Tunneling
Different protocols create tunnels differently. WireGuard uses a simple, efficient tunnel with minimal overhead. OpenVPN creates a more complex tunnel with extensive configuration options. IKEv2 establishes tunnels quickly and handles network changes gracefully. The tunneling method affects speed, reliability, and compatibility with restricted networks.
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