OpenVPN Support Forum

Hi guru,

I would like to build point-to-point VPN to multiple sites as follows:

Site A (10.1.0.1) --------> Site B (10.1.0.2)
|
+-- (12.1.0.1) --------> Site C (12.1.0.2)

I could connect Site A to Site B or Site A to Site C individually. However, I can't make it work as Site A to Site B and Site C together. All of the sites are Microsoft Windows 2003 servers. Please give me any hint to tackle this problem. Note: It has just one LAN card on Site A.

Thanks in advance

Athens

You need to install two TAP virtual ethernet adapters.

Hi Psilo,

I have added another TAP virtual ethernet adapter, but I don't know it's name for the configuration file. i.e. For the first TAP adapter, I use "dev tap" to refer it on the configuration file, how about the name of the second TAP adapter?

If you could show me a simple example of the configuration file for Site A, that would be great for me.

Thanks for your help.

Athens

athensy

Are you on windows? If so you just need to look at the adapter in the Network Connections screen. In Windows 7 you get there by right-clicking on Network -> Properties then click "Change adapter settings". Once you are looking at the adapters, they should have default names of something like "Local Area Connection n" where n is some number starting at 2 when you have more than 1 adapter.

Now I don't know the reason why or if it even is important, but I've seen in at least 2 places in the documentation that when you are referring to the adapter it is best to change the name to something that does not include spaces. Something like "tap-adapter". I'm guessing you can't have spaces in the config file. Right click -> Rename to change the name.

If you're on anything other than Windows then I can't help, but I imagine you'd do the same as the above, only OS specific. Linux ought to have it's own "Network Connections" screen or equivalent.