Vpn bridge vs tunnel

1. What is a VPN bridge?
2. What is the difference between a VPN and a tunnel?
3. What is bridged vs routed VPN?

What is a VPN bridge?

A bridge interface is a kind of virtual network interface which is formed by combining one or more ethernet interfaces, each of which may be a physical NIC or a virtual TAP interface used for VPN tunneling.

What is the difference between a VPN and a tunnel?

A VPN is a secure, encrypted connection over a publicly shared network. Tunneling is the process by which VPN packets reach their intended destination, which is typically a private network. Many VPNs use the IPsec protocol suite.

What is bridged vs routed VPN?

Bridging and routing are functionally very similar, with the major difference being that a routed VPN will not pass IP broadcasts while a bridged VPN will. When you are bridging, you must always use --dev tap on both ends of the connection.