When Is Tunnelling Used?

Tunnelling is often used to get past unsophisticated or poorly configured firewalls by enclosing blocked protocols within protocols that the firewall allows through.

What is tunneling used for?

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.

What uses a tunneling protocol?

Generally, these types of protocols are used to send private network data over a public network, usually when creating a virtual private network (VPN), but can also be used to increase the security of unencrypted data when it is sent over a public network.