link to ISP network via another ISP
link to ISP network via another ISP
Determine the connection type—whether it's client to server, server to server, client to client, or client to client. Identify which end of the link is involved and check if you have access to both routers in the Double NAT setup. Consider simplifying the configuration by removing the Double NAT.
The client should sit behind the Double NAT setup, which may function well if the server supports port forwarding on the other ISP network. Determine whether it's a file server, game server, web server, or VPN solution. A VPN can handle this task, but offering your own encryption methods like SSH, SFTP, or HTTPS would allow direct use of those protocols. Also, confirm the operating system running the server.
Configure a Pritunl server on your network with port forwarding options. Activate inter-client communication and ensure both servers connect to the same VPN. This setup allows secure interaction even when one server is behind a Double NAT. Refer to the provided tutorial for guidance.
Yes, you can connect to the VPN server on the Double NAT network.