VPN Protocol Comparison


Learn the distinctions among different VPN Protocols

Brief comparison between assorted types of VPN (Virtual Private Network) protocols available today

Updated February 2014

VPN is based on fast tunneling and encryption. Data packages are allowed to be transmitted between the customer and the VPN through the tunneling procedure. In order to complete the process and make sure that everything is transmitted efficiently and smoothly, there is a plethora of VPN security protocols that can be used.

In all of these VPN security protocols, you will find both pros and cons and we are in the pleasant position to present you with both the advantages and the disadvantages of the most commonly enabled VPN protocols below. In this chart, you will find useful pieces of information and details that will either motivate or discourage you when it comes to picking the VPN protocol you are going to use.

As you will come to see, there are several factors that have been taken into account prior to our final conclusion. We have tested these VPN protocols regarding their speed and stability, their ease of use and setup challenges and so on.

Once you have had your pick, find out which VPN providers support your preferred VPN protocol here!





Background Report

The PPTP is an extension with conservatory from the Point-to-Point Protocol (PPP) standard generally applied for dial-up network in between computer modems. This networking protocol functions at Layer 2 from the model of OSI. The technically specified standards of PPTP is actually RFC 2637. A sophisticated tunneling standard protocol utilized to assist ISPs and VPNs. It’s now a suggested option for PPTP standard protocol for a lot more secured information encryption. An open-resource software being made use for SSL-VPN alternatives. OpenVPN enables networks to safely connect to each other by employing the usage of already shared top secret keys, login details also accreditation. A VPN protection tunnel that makes use of the secured exchange of L2TP or PPP traffic in order to an SSL-3.0 route. SSTP is just intended for remote customer accesses, it doesn’t assist peer2peer VPN-tunnels.

Data Encryption

Even though PPTP determines and create a tunnel, it on other hand doesn’t offer any kind of encryption. Internet connections being setup on PPTP can be protected and secured by making use of MPPE (Microsoft’s Point2Point Encryption protocol) that uses the 128 bit – RSA RC4 security protocol. This protocol alone doesn’t supply security and authentication. However, when used along IPSec, it will supply a decent security encryption to rely on. IPsec facilitates two encryption methods: Tunnel and Transport. 256 bit applied for security. OpenVPN employs the OpenSSL collection to offer data encryption. It’s an open source execution of computer different languages particularly developed for TLS and SSL protocols. SSTP makes use of SSL allowing data encryptions and transmissions. By making use of the SSL route (TCP 443 port), it can overlook proxy servers plus can go through most frequently used firewalls.


A noticeable benefit of PPTP across other security methodologies is that it facilitates nearly all VPN supported operating systems (Windows, Linux, Mac, mobile, and so on.). For PPTP user to make a connection with a network, it needs customer authentication. For most of the computers, Windows OS (Operating Systems) automatically creates the VPN for PPTP. But, for much better security, it is recommended to establish L2TP/IPsec too. Establishing L2TP/IPsec alternatively is straightforward and fast to do. The majority of OSs (Operating Systems) don’t contain any OpenVPN functions. But, establishing an OpenVPN software for any kind of system is straightforward and simple to take on. SSTP VPN protocol is considered as most trustworthy VPN protocol. But, such VPNs can be quite complex when it comes to the primary setup. However, when installation is successful, it will continue to work pretty smoothly.


It’s a comparatively compact security protocol having 128-bit keys. Security level is less in comparison to other methodologies, which make full use of security bits that are higher. This makes PPTP quicker than other available network protocols. Connection speed rate of IPsec/L2TP is nearly similar with PPTP. It has a small speed benefit but the distinction is just negligible. OpenVPN is actually at its best overall performance when found in its standard UDP mode. It is quick and steady, even on great latency internet connections and terrific distances. SSTP connection speed efficiency is nearly similar just like PPTP protocol. The sole issue with it is the fact that it takes a bit long to connect.


Point-to-Point Protocol makes use of TCP port 1723 (useful for PPTP) and GRE worth 47 (useful for PPTP). 500 UDP is useful for the primary key exchange, standard protocol-50 is useful for the IPSec protected data (ESP), 1701 UDP is useful for the primary L2TP setup and 4500 UDP with regard to NAT traversal. IPSec/L2TP could be easily obstructed because it depends only on predetermined protocols and slots. OpenVPN can operate on any slot by making use of both TCP or UDP. OpenVPN may be designed to make use of TCP on slot 443, in order to easily avoid restrictive firewalls. SSTP makes use of TCP 443 port for transferring SSTP-Traffic.


This particular extension of Point-to-Point Protocol isn’t the safest network protocol with regards to unpredictable network connections. It usually has compatibility problems with the Generic-Routing-Encapsulation (GRE) tunnel and several routers too. SSTP is designed for BSD, Linux, and Windows. IPsec/L2TP is a dependable and secure VPN protocol. In case the client and server facilitate NAT traversal, there should not be any problem concerning network solidity. OpenVPN really is trusted and secure over WiFi, cellular as well as other sorts of overloaded networks. The particular TCP setting is for extremely sluggish connections, however upon use, you will see the destruction in rate of its speed. It’s a fantastic protocol. SSTP genuinely is more steady than L2TP as well as having the similar security levels just like PPTP. But, it’s the most suitable option with regards to the higher level of security and encryption.


The MS (Microsoft) execution of PPTP has significant security weaknesses. MSCHAP-v2 seems susceptible to dictionary assault and the RC4 is susceptible to a bit flipping assault. Microsoft highly recommends updating to L2TP protocol where privacy is very important. IPSec/L2TP is usually deemed as a secure and trustworthy VPN protocol. This protocol provides much better encryption levels as compared to PPTP. The OpenVPN is nearly as safe as IPSec/L2TP. With a condition being until it makes use of protected encryption rules like AES, there is absolutely nothing to be worried about. OpenVPN also can utilize the HMAC-Authentication attribute to further enhance security. SSTP users are identified throughout the SSL & PPP stages. SSTP uses PPP to enable assistance for typical authentication strategies, like EAP TLS and MS CHAP.

OS Compatibility

It’s possibly one of the most handy protocol to make use of, because it facilitates nearly all main platforms. It supports OSX, Windows, Android, Apple iOS and also DD-WRT (routers). IPSec/L2TP is easily available on the majority of operating-systems. It’s also suitable for devices like the iPad and top rated Smartphones available in the market today. It’s suitable for nearly all OSs (Operating Systems) accessible today. OpenVPN is intended for Mac, Windows, Linux and also Android devices through 3rd party applications. SSTP is designed for BSD, Linux, and Windows. But, Windows OS which are older than Vista aren’t recognized by SSTP. Mikrotik RouteOS furthermore will help SSTP. Additionally, it doesn’t support mobile phones.


It’s a ‘sufficient good’ VPN protocol considering how quick the speed is; plus, how easy it’s to set up PPTP. But, in terms of security implementations, it is probably the most unprotected network protocol. IPsec/L2TP is a good VPN protocol particularly if you’re using cellular devices. IPSec/L2TP also offers outstanding security levels, it is really steady, and it is easy to set up. OpenVPN can be named as one of the most well-known VPN protocols available these days. It’s free of and is surely an open-source application – you probably should have guessed that by its name already. It has almost everything you require in a trustworthy security protocol. It is fast, trusted and moreover, it’s seriously secure. SSTP is undoubtedly an incredible VPN protocol. It is very secure and the encryption concentrations are outstanding too. The only issue with it is, it can’t be utilized with all of the devices that facilitate a VPN. However apart from that restriction, SSTP works pretty well.