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

    Choosing a VPN for gaming: Here’s what you need to know – TweakTown

    Choosing a VPN for gaming: Here’s what you need to know  TweakTown

    Here are some great tips on picking a VPN for when it comes to gaming.




    The best VPNs for Windows right now – TWCN Tech News

    The best VPNs for Windows right now  TWCN Tech News

    Windows is by far the best-known operating system, but its popularity makes it vulnerable to cybercriminals. If you’re a Windows user, you need to be aware that …




    Unblock Premier League live streams – The best ways to watch the EPL – proprivacy.com

    Unblock Premier League live streams – The best ways to watch the EPL  proprivacy.com

    The Premiership is the most watched soccer tournament in the world! With a VPN anyone can watch the action! Click here for how to watch EPL live streaming!




    The VPN Industry Is on the Cusp of a Major Breakthrough – PCMag

    The VPN Industry Is on the Cusp of a Major Breakthrough  PCMag

    The WireGuard protocol is intended to be the future of VPNs, promising better speeds and security. We tested NordVPN’s implementation, and WireGuard …




    The Best VPNs For College Students – PCMag UK

    The Best VPNs For College Students  PCMag UK

    Public Wi-Fi networks aren’t always safe, and college and university towns are full of them. If you’re pursuing a degree, these are the best VPNs for protecting …




    The Best VPN Routers for 2019 – PCMag.com

    The Best VPN Routers for 2019  PCMag.com

    VPN routers provide all the data safety and privacy features of a VPN client, but they do so for every device that connects to them. We test 10 of the best models …




    iPad Pro with triple-camera setup reportedly coming in 2019 – iMore

    iPad Pro with triple-camera setup reportedly coming in 2019  iMore

    Apple is rumored to introduce a refreshed iPad Pro before the year ends, and we know at least one upgraded feature Apple has planned.




    Global VPN Software Market 2019:2025, by Key Federation – PureVPN, NordVPN, OpenVPN, ExpressVPN, Cisco, CactusVPN – The News Network

    Global VPN Software Market 2019:2025, by Key Federation – PureVPN, NordVPN, OpenVPN, ExpressVPN, Cisco, CactusVPN  The News Network

    A new market research report released by Market Research Trade with title “Global VPN Software Market 2019-2026” has abilities to raise as the most vital …




    Safeguard your privacy online with this award-winning VPN – Android Central

    Safeguard your privacy online with this award-winning VPN  Android Central

    If you’re still surfing the Web without the protection of a VPN, you may as well be leaving your laptop open and unattended in a busy coffee shop.




    What is OpenVPN? – A Beginners-Friendly Guide to OpenVPN, The Most Popular VPN Protocol! – TechNadu

    What is OpenVPN? – A Beginners-Friendly Guide to OpenVPN, The Most Popular VPN Protocol!  TechNadu

    When browsing different VPN providers, you’ve probably noticed that many are OpenVPN-based. So, let’s take a look at what is OpenVPN and how it can be …


    www.pdf24.org    Send article as PDF   

    Similar Posts


    Switch to our mobile site