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larry
Asked: 2010-11-30 17:55:57 +0800 CST

What is difference between OpenVPN and PPTP?

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I know PPTP is based PPP, so what is the openVPN based on ? can the packets of openVPN be

routed by ubuntu server ? thanks!

vpn openvpn pptp

4 Answers

  1. Best Answer

    What is the openVPN based on ?

    SSL/TLS

    can the packets of openVPN be routed by ubuntu server?

    Yep, of course!

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  2. The following article may be of help: What’s the difference between PPTP VPN and OpenVPN?

    The conclusion at the end of the article is as follows:

    To sum up, if you are looking for high security and privacy you should choose OpenVPN. If you need easy-to-setup VPN, PPTP is a good choice. For mobile devices, both OpenVPN and PPTP can be used.

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  3. PPTP uses PPP and GRE tunneling - quite old protocols, especially GRE which may be awkward to pass by some routers. It uses TCP port 1723.
    OpenVPN is more flexible - it may be set up on any UDP or TCP port. OpenVPN uses OpenSSL library with all its goods.
    I don't see any reason any of them could not be routed by Ubuntu server.

    OpenVPN is for you if:

    • you are blocked by Internet Provider or behind restrictive firewall
    • you are looking for high security advanced solution
    • you need additional features like Exclusive Tunneling

    PPTP is for you if:

    • you need an easy-to-setup VPN
    • you want to connect from mobile devices
    • you don't want to install additional software

    The above bullet list is the summary from the best comparison I found:

    OpenVPN vs PPTP

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  4. We've written a guide on the differences between PPTP, L2TP and OpenVPN that you might be interested in at http://www.vpncompare.co.uk/the-difference-between-pptp-l2tp-and-openvpn/

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