PPTP vs OpenVPN | Difference between OpenVPN and PPTP


PPTP vs OpenVPN What is the difference between OpenVPN and PPTP

This article is about the difference between  OpenVPN and PPTP. Following are some important differences of  OpenVPN and PPTP.

PPTP

OpenVPN

 Point-to-point tunneling protocol (PPTP) is a VPN protocol used for fast and easy to use protocol. PPTP is a good choice if Open-VPN is not supported by a device.
OpenVPN has Highest performance, fast, secure and reliable which uses open source technology like OpenSSL-encryption and SSL v3-TLS v1. OpenVPN is recommended protocol for OS including Windows, Linux and Mac. Can be slightly slower than PPTP and introduce more overhead.

PPTP Supports Encryption level up to 128 bit session encryption-keys.


OpenVPN Supports Encryption level up to 256 bit session keys, however the session-keys can be vary. Exceptional data security when using AES-256 encryption

PPTP Uses TCP port and GRE Port Configuration.

 You can configure OpenVPN with TCP or UDP ports. Uses port 443 by default, so it looks like HTTPS traffic
·          

PPTP is Very stable and accepted by most Wi-Fi hot-spots.

OpenVPN is the Most stable and reliable even on non reliable networks, behind wireless-routers and on Wi-Fi hot-spots as well.
In PPTP the data encryption is done using the Microsoft Point-to-Point Encryption Protocol.
Where as in Data encryption is done with the OpenSSL library in OpenVPN.

Following are the supported OS by PPTP:
Windows
Mac
Android
Following are the supported OS by OpenVPN:
Windows
Mac
Android
PPTP is less secure as it uses the Basic encryption.
OpenVPN is most secure as it uses the highest encryption and will be most secure if its set to use AES-encryption instead of the weaker-Blowfish encryption.
PPTP is Fast due to lower encryption.
OpenVPN is also best performing protocol with fast speeds, even on connections with high latency and across great distance.
PPTP is old and vulnerable protocol, although integrated in-to common OS and easy to set up. But it is better to stay away from it.
OpenVPN is new and secure, although you ll need to install a 3rd party app.
PPTP is not an open source software
OpenVPN is open source software.

No additional software is required.
Typically requires downloading an extra software client

Drawbacks:
·         Rampant security flaws
·         Shouldn’t be used unless it is an only option
·         Weak encryption
·         Can be blocked easily by ISPs and networks

·         A little more difficult for non-technical users to setup without a guide and this is the one of the largest drawbacks to OpenVPN is that it isn’t always available as an option for non-technical users.
·         And because it isn’t offered by default with most operating systems, users first typically need to download an OpenVPN client-software. In addition, OpenVPN can actually be a little slower than other connection options such as L2TP/IPsec.



I hope this is informative for you, i tried to cover all aspects in this post. You can add or share your comments for improving this post. Thank you!

VPN Configuration on Gns3

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