Can't access server

[Archangel]

Heya folks,
I am in a bit of a pickle:
1 pfsense server in gcloud serving as vpn server.
1 server on-premise to serve as a web host on, let's say port 8084.
On-premise is connected through openvpn to pfsense.

I need to NAT from the pfsense between WAN and LAN interfaces in the pfsense.

I have followed 5+ guides, but it just won't freaking work (a bit agitated at this point, as I've been doing this on/off for more then 2 weeks, troubleshooting and reinstalling servers for troubleshooting purposes).

External IP is something different (34.xxx.xxx.xxx)
Gcloud WAN interface is connected to address:
10.0.0.1 (/24 subnet)
Openvpn network is 10.0.1.0/24
On-premise is connected on 10.0.1.4 (/24 subnet)

On-premise can ping Google and various websites, but I can't for the sake of me do a NAT between wan interface and openvpn.
Is there anyone that can help me with this in any way shape or form?
Even pointing me in a direction would be helpful somehow.

Of course I am willing to provide all the logs and info that is necessary to solve this, it would mean a lot to me if this got resolved! :)

First question that will most likely be asked:
Why not just host the webbserver on gcloud?
Well it can't fit within the free tier VM as it needs to connect to a SQL server as well.

[Rico]

Did you assign the OpenVPN Interface?

-Rico

[Archangel]

@Rico I've assigned the ovpn adapter (named ovpns1) as a LAN interface, and I have enabled it as well.

[Rico]

Hmmm not really sure to correctly understand your problem or not.
You have something like this?

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So my Browser connects to your pfSense1 WAN (198.51.100.5) and hits the Webserver (192.168.2.11) at your pfSense2 via the OpenVPN tunnel?
If this is what you are trying to do I suggest you to post all of your configuration via screeshots. You must have something wrong because I have stuff running like that just fine.

-Rico

[Archangel]

I am not good at drawing network diagrams, but I tried to draw one as good as I could :)

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[Rico]

So your on-prem Webserver is also running as OpenVPN client which is connected to your gcloud pfSense? You are only running this one pfSense? What is your OpenVPN mode?

-Rico