This might be a little basic for this place but I've really run out of things to do. I'm running a Wireguard VPN server on a Virtual Machine Instance. I can connect my clients to the VPN, and they can all reach the internet without issue, however they cannot reach each other. Thing is that I have the VPN configured to allow client to client connection, and to make sure I wasn't insane I even set up the same VPN server on another cloud platform and it worked fine, which tells me I have a problem related to my Oracle setup, I prefer Oracle because its more cost effective so I'd like to get it working here.
The error I get when trying to either ping or SSH to machines on the network (which do have the proper ports open) is "Destination host prohibited" and "No route to host" respectively.
Its worth noting that while I cannot do client to client connections, I can connect to the server from any of the clients, and from the server I can also connect to any of the clients. I just cannot get client to client working.
I have the listening port for the VPN server opened on the ingress rules on my security list, I'm not sure what else I should be trying to open. I as a temporary fix also tried setting all protocols to open and the issue still happened.
Lastly I used to use an OpenVPN setup through Oracle where client to client connection did work, however I had other issues in OpenVPN and decided I wanted to use Wireguard instead
Thanks for any help!