Multisite N2N OpenVPN

I am trying to figure out how to setup a multi site N2N with OpenVPN using IPFire. Is it possible? I have found absolutlely no online information about the subject. I have found a little bit using IPSec for it. I know OpenVPN can do it, as PFSense allows the function to happen:

The problem I am having is I do not understand what the “Global Settings” actually do. The server is not running, the box is checked, and I have added 2 servers in the Connections Status and Control section. Both connections come up. However, it only works with the 1st server connection I turn on.

If I turn on the 1st one, the client connection can ping the and the pcs. But the connection cannot ping the , only it’s own local subnet. If I start the server 1st, that side works and can ping the and, but not the In this case, now the can only ping its own subnet and not!

I have tried it with the “Global Settings” server turned on and off. Even the “OpenVPN on RED” check box has 0 effect on what happens with the 2 servers setup in the Connection and Control section. I have even gone in into the Advanced Server Options and add the and to the push route options.

I also tried the Client-To-Client check box and the
Redirect-Gateway def1 box.

Nothing changes. On each of the client IPFire devices, I can click the Status>OpenVPN: Net-to-Net Statics, both show a colorful red and green chart, even though 1 of those clients cannot ping the openVPN server gateway.

This isn’t an answer to your question, but why are you trying to use OpenVPN for this instead of IPSec?