Types of VPN and VPN Protocols Explained

January 22, 2019 by Bilal Muqeet

A VPN comes along with security protocols. The VPN protocol implements a set of instruction for exchanging messages on a public network with proper assurance. VPN works with different protocols that depend on different network layers.

VPN Protocols makes the connection encrypted by converting the network securely into private through the concept of tunneling. A VPN shields up the network connection between two parties over the internet.

The reason of using a VPN Protocol?

A VPN utilizes multiple protocols, and they have a purpose of transferring browsing data from your device and the server of the VPN. Each protocol accesses various features to safeguard your browsing activity from digital snoopers and hackers. Every VPN protocol is unique in its specialties since they offer distinct features.

Some VPN protocols prefer encryption and security over speed, while some, vice-versa. It all depends upon what you desire for your browsing needs. If you prefer safety over speed, opt for the VPN that offers the strongest levels of encryption. Thus, a VPN is incomplete without a protocol that doesn’t comprise of everything.

6 Types of VPN Protocols and Their Use

A VPN protocol gives speedy connection, secure browsing, internet stability, downloading and compatibility with devices, and these actions are dependent on different VPN protocols. These protocols are helpful for achieving security in a network, and they are:

1. IPSec – Internet Protocol Security

Internet Protocol security is a procedure for keeping the records safe from a complete gateway of network and host-to-host communication. It’s a way to protect the IP network of end-to-end users. IPSec enhances the connection security providing the public/private keys to lock/unlock the data; these keys are helpful in encryption and decryption mode.

The IPSec develops an authentication scheme to have a proper check on the individual connection. The data which is sending or receiving divides into packets and each pack have to pass under the encryption step. Therefore, two modes are available in IPSec, i.e. Transfer mode and tunnel mode, transfer mode encrypts the data and tunnel hides data passage.

2. L2TP – Layer 2 Tunneling Protocol

Layer 2 Tunneling Protocol is a tunneling protocol that provides shelter to an entire network. L2TP doesn’t heel the encryption and authentication for data confidentiality, but it works with other VPN protocols like IPSec, the IPSec takes out the encrypted and authenticated data then L2TP develops a safe and secure channel between two networks.

L2TP works with exchanging of data packets between two peer, if one peer is requesting to establish a tunnel, L2TP starts to create the tunnel generation session when the data frames get empowered to travel on a secure shell. Once a tunnel is rooted then bidirectional traffic on the internet is allowed to pass smoothly without any fear.

3. PPTP – Point-To-Point Tunneling Protocol

A point-to-point Tunneling protocol is a duet combination of Point-To-Point Protocol (PPP), and it’s interrelation with Tunneling Protocol. It was the product of Microsoft. PPTP has become a most suitable VPN protocol nowadays because it ensures the security of Virtual Network through other versatile conventions.

PPTP implements two actions for network security. Firstly, a tunnel is made between two disburse network, and the data that has to be driven from this tunnel is authenticated and encrypted. Point-To-Point protocol performs the authentication and encryption on the data, then this encapsulated form of data can easily pass from the tunnel.

4. SSL – Secure Socket Layer

Secure socket layer protocol and transport layer protocol are the cryptographic protocols which work for security on the HTTP request. Different applications like websites and chat messenger are aimed to have a secure connection between the browser and the application server. HTTPS securely establish the relationship of a web browser to an application server.

SSL and TLS work with data authentication by the use of crucial mutual generation, these public keys are allowed to use at both encrypting and decrypting the request details, encryption is performed when the request is about to send by the browser, similarly, decryption is achieved when the application is about to receive by the server.

5. OpenVPN

OpenVPN is an advanced VPN protocol that allows the customization to a virtual network; therefore it is an open source application for creating safe connections site-to-site or remotely. OpenVPN identifies some prior cryptographic techniques by the use of a systematic key for data analysis.

OpenVPN works with the two authentication modes the static key and TLS. The OpenVPN uses a pre-shared static key and its peer for passing cryptographic data from the tunnel, whereas TLS provides end to end security between the browser and server. Behind this criterion, a certificate generates when the static key authenticates the following request.

6. SHH – Secure Shell

The secure shell provides the extension of remote access to a client machine to the server securely. This protocol also works for making up a tunnel and allow the data to traverse from the tunnel after encryption. The client machine performs remote actions, to log in remotely from their local computer; a secure tunnel associates the local area network.

The SSH operates on a client-server machine to protect communication between two ends, at the client end a request sends to make a secure connection between an SSH client and SSH server. Both sites use a public cryptographic key to for identification of text. Similarly, at the server end, the encrypted version converts into plain text through some algorithms.

Finalizing the VPN Protocols

The different protocols utilized by VPNs have been described to you. Choose a VPN which seems reliable to you. These VPN protocols will only be found in a good VPN service that offers numerous features. Some of them have unique specialties like Kill Switch, NAT firewall that provides full-stack privacy.

Leave a Comment