OpenVPN Server and Client co-existing, to access NFS Share

delebre

Greetings,

I have a Raspberry Pi running Raspbian (Debian wheezy).
I have OpenVPN Client installed, and on boot it establishes a client connection to a paid VPN service (PIA). It works great.
I have OpenVPN Server installed, it has been properly configured to allow connections from clients. Only works when OpenVPN Client on RPI is not running.
I have a DDNS server monitoring the current WAN IP.
I have an NFS mount on this RPI that connects to my NAS. For watching tv shows, etc.

Now, I would like to be able to run an OpenVPN Server alongside the OpenVPN Client service.

I would like to connect to the RPI remotely, or allow a friend access, and then be able to download stuff from an NFS network share over the OpenVPN connection.

The problem is I don't know how to run both an OpenVPN Server and Client at the same time and have the two connect.

I have set up an OpenVPN server following the instructions here: http://readwrite.com/2014/04/10/raspberry-pi-vpn-tutorial-server-secure-web-browsing
I have OpenVPN client running and connected to the paid service as well.

When the paid VPN connection is active on the RPI, and I run the OpenVPN server on the RPI and try to connect, I get this error:
TLS Error: cannot locate HMAC in incoming packet from [AF_INET]<IPADDRESS-OF-OPENVPN-CLIENT-CONNECTED>:1194
Obviously with the proper IP listed there.

I can only assume there is some sort of routing issue where the Desktop client, when establishing a connection to the OpenVPN Server, it cannot 'intermingle' with the already established VPN client connection that the raspberry PI already has running.

Does this make sense to anybody? I feel like I am SO CLOSE. Everything works except this last step when 'bridging/routing' the two connections.

I made a beautiful diagram to help explain WTH I am trying to do. 😃
You can view it here: http://www.gliffy.com/go/publish/5915309
Or another copy here: http://oi61.tinypic.com/23wuyra.jpg

Lastly, if you don't mind telling me how to browse the NFS share once the VPN is established, that would be really really helpful.
Otherwise, I'll go create a new thread and work on that separately.

Thank you all very very much in advance.

delebre

Here is the server.conf, client ovpn, and client conf for my paid service.

http://pastebin.com/8vvchM3i

delebre

I don't need help with my commercial VPN access. It's working just fine. My issue is that I don't know if it's possible to tunnel my desktop into the RPI over the internet, while the RPI is using a VPN to connect out to the internet. Can you tunnel back through that way?

I will try changing the ports as you suggested.

Sent from my iPhone using Tapatalk

delebre

Ok so I tried changing the port to something different, 1199, to see if it would work. It does not.

If I disconnect the existing (outgoing) OpenVPN Client connection on the Raspberry Pi, and then attempt to connect, it works fine. Instantly connects.

If I have the existing (outgoing) OpenVPN Client connected on the Raspberry Pi, and then attempt to connect, it says TLS handshake error.

I've tried using both my real WAN IP address and the OpenVPN connection/assigned address. This is driving me nuts! I'm SOOOO close!

delebre

I am indeed using that option. You can check out my client OVPN here if you have a moment:

http://pastebin.com/8vvchM3i