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5 Common Types of Virtual Private Network Protocols

Of course, you may have heard that using a Virtual Private Network is important to protect your privacy. So, now you wonder how VPNs work? Well, it’s not surprising and understandable.

While most people recommend using a VPN, few people take the time to understand and learn the most important part of VPN technologies. Here is a virtual private network with security protocols. These protocols impose a set of guidelines for sending and receiving information over a public network with the appropriate assurance.

For the most part, a virtual private network works with various protocols that rely on different network layers. These protocols encrypt the connection by making the connection private through the idea or notion of tunneling. For a little help, we’ll walk you through common VPN protocols, their differences, and what to watch out for. Keep reading!

What is a Virtual Private Network?

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Before diving into the protocols, let’s refresh our minds on a virtual private network. A Virtual Private Network allows you to access public WIFI through a private connection. So when you visit a website, your request goes through the correct server, usually returning the correct content. Technically speaking, your message travels virtually, unhindered, from A to B, and the service or website may display your IP address, as well as other identifying information.

When you use a virtual private network, all your requests are, for the most part, routed directly through a private server, owned by the VPN provider. All your requests go through heads A, C, and B. However, you can access information previously available to you. However, the service or the website only has the information of the virtual private network provider, such as its IP address and many others.

There are many uses for a virtual private network, including encrypting your communications, avoiding restrictive censorship to ship, and protecting your data and identity.

Virtual Private Network Protocols

VPN protocols determine precisely how your information or messages are routed between the VPN server and your computer. A VPN protocol has different specifications, which benefits users in many ways. For example, some protocols focus on speed, while others prioritize security and privacy.

Here are the most common VPN protocols:

1. SSL

Stands for “Secure Sockets Layer”. SSL is a secure protocol developed for sending information securely over the internet. Many websites use SSL for secure areas of their sites, such as user account pages and online checkout. Usually, when you are asked to “log in” on a website the resulting page is secured by SSL.

SSL works with authentication of data through critical mutual generation, which are public keys used to both decrypt and encrypt request details. Encryption is performed when the request is coarsely sent from the browser. Similarly, decryption is performed when the application is about to be received by the server.

2. OpenVPN TCP

OpenVPN comes in two types: OpenVPN TCP and OpenVPN UDP. First, we’ll discuss the OpenVPN TCP. This variant is based on the transmission control protocol (TCP), which is integrated with the IP, creating a set of guidelines for how devices exchange information back and forth

In other words, TCP is a connection-oriented protocol. Plus, it establishes and maintains this connection functioning while applications exchange data. The transmission control protocol is leveraged mostly on the internet.

One of its advantages or benefits is that it has an inbuilt error connection. This means that for each block of data transmitted, confirmation of the packet’s arrival is required before the next packet is sent. If no verification is obtained, the current data is returned.

3. OpenVPN UDP

Stands for “User Datagram Protocol.”UDP is yet another communications protocol for sending or conveying data between the user and the internet. Not like OpenVPN TCP, OpenVPN UDP is designed to target low-latency sending of data, but reliability is sacrificed.

In that case, UDP only sends the data without confirmation and verification. Thus, it has fewer upkeeps and is lower latency. These traits or attributes make OpenVPN UDP ideal for video and audio streaming activities, as well as gaming. While you might skip in video or hear some fuzz in audio clips, UDP transmission prevents the playback from stopping completely.

4. Internet Protocol Security (IPSec)

This VPN protocol is, for the most part, used to protect Internet communication against threats on an IP network. Internet Protocol security protects IP communication by verifying, validating the session, and hiding all data packets during the connection.

This VPN protocol works in two modes, namely Tunneling mode, and Transport mode. Transport mode works by encrypting the messages in the data packet. On the other hand, tunneling mode converts the entire data packet into a cipher or code. Internet Protocol security can undoubtedly be leveraged with other protocols to improve and strengthen the security system.


SSTP or secure socket tunneling protocol is yet another famous and renowned virtual private network protocol. It arrives with one remarkable benefit, which is being completely unified with every Microsoft OS.

Meaning, you can use this VPN protocol with Winlogon, a smart chip. Moreover, a lot of VPN providers have particular integrated SSTP guidelines available, which you can discover on the website of your VPN provider.

Key Takeaway

So, SST, OpenVPN TCP, OpenVPN UDP, IPSec, and SSTP are some of the common types of virtual private network protocols. SST secures an HTTP request. OpenVPN TCP is targeted to maximize data transmission reliability. OpenVPN UDP transmits information without checks and redundancy. IPSec is used to protect Internet communication against threats throughout an IP network.

And lastly, SSTP is known for its incredible security and is hard to detect and block. Above anything else, be sure to get to know the different best VPN providers in the market today so that you can choose the best for your needs.



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