When you use a VPN over the Internet, it creates a private encrypted tunnel between two devices/networks.
Now, with a VPN, it is much more difficult to get hold of your data, and even if it is hacked since this data is encrypted, it is almost impossible to get any information from this data.
There are several VPN tunneling protocols phone number list such as PPTP (Point-to-Point Tunneling Protocol), L2TP (Layer 2 Tunneling Protocol), IPSec (internet protocol security), SSL (secure socket layer), etc., which are used to create VPN tunnels.
For example, if you are using IPSec, which is a set of protocols, to create a VPN tunnel, you can use the following scenario.
Let's say you have an office in Moldova, and you want to connect it to another office in Russia to exchange information between these offices over the Internet in a confidential, secure, and encrypted.
You can create a VPN tunnel between these two offices and start accessing the devices/networks as one large private network located on two continents.
To get this private VPN tunnel, you need to use VPN technique/devices or VPN gateways that will act as two ends of the tunnel.
However, if you need to connect a remote device to any of these offices, you can simply use a point-to-site VPN connection using SSL-VPN.
For IPSec, you follow a two-step process to create a VPN tunnel. The first phase is used to authenticate the IPSec peers and to establish a secure channel between peers to enable the exchange IKE (Internet Key Exchange).
Once this is done, the second phase IKE is used to negotiate IPSec SA (Security Association) to configure the IPSec tunnel.
Simply put, the first phase is used to determine how two peers will exchange keys (negotiating cryptographic parameters), and the second phase determines how the two peers will encrypt the data (by creating key material for use by the IPSec tunnel).VPN (Virtual Private Network) allows you to securely connect to the Internet, a public network (such as free Wi-Fi at the airport), or any other area.