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I can't find a very simple application, with litle to zero configuration on both client and server side which would help one computer to bring other computers on an existing private LAN.

OpenVPN seems like an overkill for this type of thing, and is really hard to get running or debug by various clueless people trying to connect.

Does such a software exist? It's very odd not to.

The Windows provided VPN (PPTP over TCP and GRE) is not what I'm looking for because it is often filtered by ISPs.

Only TCP and UDP solutions pls. Encryption is not needed.

Edit: This question is getting a lot of hate. I just asked if a network bridge software, which configures itself with 2 clicks on a client side without any sort of admin intervention or help, exists. I will never ask another question on serverfault or even answer one. Sorry, but I was better off configuring ovpn and reading error logs than fighting non constructive comments.

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closed as not constructive by Zoredache, mgorven, Wesley, EEAA, Lucas Kauffman Jul 20 '12 at 18:36

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

Generally we consider questions asking for product suggestions off-topic here. The fact that you seem to be unwilling to put some effort into learning how to configure the OSS OpenVPN server/client makes me believe that you are not asking this question as a professional system administrator. Why do you think you need a bridge, and no a routed VPN? What are you doing, that doesn't work directly over the Internet? – Zoredache Jun 29 '12 at 21:29
@Zoredache I didn't say I don't want to learn. I said OpenVPN is overkill for the simplest thing. Also you are assuming and implying and and are also saying I don't want to learn. You are wrong. I already know how to configure it. Connecting clients don't. I have listed specific needs and this is turning into OpenVPN fanboism (every commenter and answer are blindly, and forcefully against my mentioning it as ruled out, offerring it as a solution). – Tiberiu-Ionuț Stan Jun 29 '12 at 23:32
@Zoredache "What are you doing, that doesn't work directly over the Internet?" Now you are off-topic. Seriously, your question implies doubt over my need of a VPN. You are assuming way too much, see my previous comment too. I don't know how you got upvoted (and since you like throwing assumptions at me: I bet you got upvoted by your friends). – Tiberiu-Ionuț Stan Jun 29 '12 at 23:35
Seriously, your question implies doubt over my need of a VPN, no I simply doubt your ability to ask a decent question describing your requirements. I have some level of doubt about if you need this VPN for some kind of professional network setup, or if you are looking for some kind network for people to play LAN games on. – Zoredache Jun 29 '12 at 23:51
I specifically asked about your requirement for a bridge (layer 2), because if you drop that requirement or provide more detail, I might be able to make some alternate suggestions. Instead of reading my comment and adding the additional information I asked for you have decided to attack me. You are far more likely to get help if you ignore any perceived fanboism, or insults, and skip directly to the part of the comment asking you for more information. – Zoredache Jun 29 '12 at 23:55

Layer 2 VPN that's bridgeable? Sorry, but i'd go with OpenVPN.

With one-on-one connection, you can go with static keys to avoid creating a CA, and use it over any port you wish. If you need to use it in extremely firewalled networks, you can run it over tcp/443, which usually passes 99% of firewalls as https (ssl) traffic.

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I tried the OpenVPN vmware appliance for this, yet its asking me to buy 10 licenses, yearly. I really don't want to maintain and debug configurability issues with connecting clients, so I'm not going to configure an OpenVPN server. I am looking for something simpler. – Tiberiu-Ionuț Stan Jun 29 '12 at 20:43
you dont need an apliance, you jsut need the OpenVPN package (check under community downloads) – mulaz Jun 29 '12 at 20:45
The appliance had a nice web page with preconfigured .ovpn configs for clients. Other than that, read my previous comment again, I've edited it. – Tiberiu-Ionuț Stan Jun 29 '12 at 20:47
OpenVPN windows GUI client is installed with a few clicks. Client config file is simple (documented) and the same for all clients if you use the same names for the files. After that, you only need to copy the certificates and the config file to the right place... a 2 or 3 lines script can do that for the client and you won't need to debug after the 1st time if you do it right. Anyways, you won't find a software to open (and protect) your LAN to the Internet without configuring some things... and if you find one, there is a fair chance you get uninvited people on your LAN quickly... – laurent Jun 29 '12 at 22:11

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