Openvpn

I make use of openvpn almost on a daily basis when I’m out in the world and use my laptop to connect to the internet. I’ve done several projects related to openvpn which I’ll detail in this page.

For starters:

openvpn.net and their howto. If you’re not familiar with openvpn it is an open source vpn implementation and is cross platform. I’ve had good success with it and it’s fairly easy to setup TLS authentication.

Update 6-17-10 ….

Big openvpn/dd-wrt project lately that has taken a lot of time, but it has solved an issue that I’m sure a lot of network admins have run into. When designing networks and looking to bridge offices with openvpn network admins are advised to pick unique subnets so that 192.168.1.1 in one office can route well over the vpn to 192.168.2.1 in the other office. If both networks (or multiple) use 192.168.1.0/24 there is network address collision – packets get lost and things don’t work. Well, it is possible with the right setup to do NAT on the packets that are traveling over the vpn. Why? Well, let’s say you’re a client of this 192.168.1.0 office network and are out at a wifi hotspot that also happens to be a 192.168.1.0 – you can’t exactly make them change their addressing to avoid conflicts with your business network and migrating an established business network can be a big task. Of course, you could start out your network design by choosing a different subnet and I’ve used this approach several times, but it’s really just a matter of time until you stumble across someone else with the same subnet that needs to vpn into the network and you run into the hairy address conflict problem.

So, we’ve designed a box based on dd-wrt openvpn edition…. This box has a vpn “personality” (client key and configuration to connect to a server out in the internet (a linux vps is the hub of the wheel for our topology and our openvpn server.) That server identifies the box by it’s certificate and gives it an address at 10.111.1.254. It also pushes routes to 10.111.2.0/24 with 10.111.2.254 as the gateway and 10.111.1.0/24 with gw of 10.111.1.254 to our second box which is given a 10.111.2.254 address. On each device in addition to the vpn personality there is a special brew of firewall rules which handles the packet rewriting such that any device that is attached to our two vpn boxes are accessible from the other side even though internally they can share the same 192.168.2.0/24 network. So, each client has it’s own network address (192.168.34.1) and it’s vpn address 10.111.1.1 This has worked well – it did take a lot of time to initially design but we’ve now rolled out two initial installs of it. (Not bad considering that it’s all done with ~$60 dollar router hardware.) In the future I may provide more details on the setup here because as I researched this I found NO ONE explaining step by step how to design this kind of a setup. At this point the only negative with our setup is that two devices behind the same box will not see each other via their vpn address(10.111.1.1/10.111.1.2), but their lan address (192.168.34.1/192.168.34.2) Of course, this plan also allows for mobile vpn clients that aren’t “behind the box” and they register in the 10.111.0.0/24 subnet and they are all screened with the wider subnet via the server so that anything in the 10.111.0.0/16 is pingable from each vpn subnet.

As I said, it’s been a big project and I may be detailing it here, but want to wait until all the dust settles on our setup.

    “openvpn” – Google News

    This RSS feed URL is deprecated

    This RSS feed URL is deprecated, please update. New URLs can be found in the footers at https://news.google.com/news



    VPN tunnels explained: how to keep your internet data secure – TechRadar


    TechRadar
    VPN tunnels explained: how to keep your internet data secure
    TechRadar
    OpenVPN, with its open source code, strong encryption, and ability to bypass firewalls, is the best tunneling protocol to keep your internet data secure. While it requires third-party software that isn't available on all operating systems, for the most




    OpenVPN App – freeware.de

    OpenVPN App
    freeware.de
    Die OpenVPN App ermöglicht es Euch, sicher und anonym auf Euren Geräten zu surfen. Das virtuelle, private Netzwerk ist schnell eingerichtet und arbeitet zuverlässig. Allerdings sollte man für das Tool ein paar Kenntnisse mitbringen. OpenVPN App: Eines




    ProtonMail brings its ProtonVPN service to Android – VentureBeat


    VentureBeat
    ProtonMail brings its ProtonVPN service to Android
    VentureBeat
    So far, the company has only offered a native application for desktop users, however, given that the service is built on the open source, open-standards OpenVPN, it has been compatible with other VPN clients that support OpenVPN. So while it has been
    CERN Scientists Release Free VPN For AndroidUbergizmo

    all 8 news articles »




    OpenVPN for Android 0.7.0 APK Update Goes Live – News4C

    OpenVPN for Android 0.7.0 APK Update Goes Live
    News4C
    The new update should be a top priority for all OpenVPN fans because it brings a bunch of changes which take the app's performance to the next level. First off, the update introduces a new OpenSSL Version (1.1.0g). Things get even better because the

    and more »




    8 reasons to replace your VPN client with OpenVPN – TechRadar


    TechRadar
    8 reasons to replace your VPN client with OpenVPN
    TechRadar
    OpenVPN could be the answer. It's an ultra-configurable open source VPN client which works with just about any VPN provider that supports the OpenVPN protocol. It gives you new ways to automate, optimize, control and troubleshoot your connections, and




    プラネックス、OpenVPN専用ルーター「VPN-41FE-OV1」1月中旬発売 – INTERNET Watch


    INTERNET Watch
    プラネックス、OpenVPN専用ルーター「VPN-41FE-OV1」1月中旬発売
    INTERNET Watch
    プラネックスコミュニケーションズ株式会社は、OpenVPN専用のVPNルーター「VPN-41FE-OV1」を1月中旬に発売する。Amazon.co.jpでの販売価格は1万1901円(税込)。 OpenVPNは暗号化による速度低下が少なく、モバイル機器での利用に最適としている。また、5つまでの同時接続が可能なほか、無料のダイナミック
    プラネックス、モバイル機器に最適なOpenVPN専用の有線ルーターを発売MdN Design Interactive

    all 2 news articles »




    How to setup and use OpenVPN – TechRadar


    TechRadar
    How to setup and use OpenVPN
    TechRadar
    The best providers have OpenVPN setup tutorials which not only mention configuration files, but also show you how to use them. Good examples include ExpressVPN, IPVanish, IVPN, NordVPN, Private Internet Access and VyprVPN. Others may not have any setup




    VPN Proxy Master review – TechRadar


    TechRadar
    VPN Proxy Master review
    TechRadar
    It has several issues, but VPN Proxy Master works well as a basic free product, unblocking Netflix and giving you unlimited bandwidth for everything else. For. Unlimited bandwidth free plan; Unblocks Netflix; Cheap yearly plan; Android and iOS apps




    What is OpenVPN? A closer look at this popular VPN encryption protocol – TechRadar


    TechRadar
    What is OpenVPN? A closer look at this popular VPN encryption protocol
    TechRadar
    One of the reasons OpenVPN is popular is the fact that it supports all the major operating systems, including the expected desktop platforms of Windows, macOS and Linux, as well as the mobile platforms of Android and iOS. It also supports the less


    en.pdf24.org    Send article as PDF   

    Similar Posts


    Switch to our mobile site