So, it’s always bidirectional? Then I must review my setup the next time I’m up there. I had the impression it was one-way only. If I can reach the client’s network from the server it’s the thing I’m looking for as the client isn’t reachable from the internet…
Yes, by default. OpenVPN is one of those services with a million settings so I’m certain it is possible to configure it so it is one way. And perhaps it is reasonable for some of the gateway/firewall wizards to configure it so that happens. But by default, normally it is bidirectional, though like I said, the IP address will be different.
That’s fine, I already configured two separate subnets.
Thanks again, I have to look into this!
Just to make sure, I connected my phone to my OpenVPN over the cellular network and was able to ping it using its OpenVPN IP address from a machine on my LAN. So I’m not just making things up. It is, or at least can be bidirectional.
I have a pfSense firewall and I run OpenVPN on it configured using the wizard and the client configs exported using an addon to pfSense created for that purpose.
What’s about Softether VPN, Anyone has been using this OpenVPN alternative, I 've tested it in windows a few days ago it’s fine, I’m not sure about Linux platform.
Bit late to the conversation, but I’m using ZeroTier (https://www.zerotier.com/) and it’s been faultless.
You just install and start a daemon on all your hosts, then join them to your network on the ZeroTier web UI (ZeroTier Central).
What you get is a secured VPN network between all your hosts. Assuming each host has Internet access and the daemon is running (mine all start on boot), your other hosts will be accessible. Absolutely hassle free.
It uses efficient routing so two node on the same physical network route directly, whereas my laptop on some WiFi connection elsewhere will route (encrypted) via their servers.
They support both IPv4 and IPv6 and appear to have an android app, though I haven’t used it.
Have I sold it enough?
Phones? Mac and Linux support?
I use it on two raspbian nodes and my Arch Linux laptop with no issues.
They have Android and iOS apps with good reviews, and Windows and Mac apps, but I can’t verify those.