Hello,

I have a domain registered with Dynu and currently use an ISP connection behind CGNAT (Carrier-Grade NAT), which prevents inbound connections to my self-hosted web services.

I need to set up a VPN tunnel through Dynu that will:

Provide me with a static IP address for DNS resolution
Allow inbound traffic to reach my self-hosted services
Work with OpenWrt router (I can configure custom routing)
My questions:

Does Dynu offer a VPN tunnel service with static IP, and if so, what is the monthly cost?
If available, what are the connection details (VPN server address, port, protocol, authentication method)?
Do you have setup documentation for OpenWrt, or can you provide the technical specifications I need to configure it manually?
Will this service support my traffic profile (~1GB per month, up to 500 client connections)?
I'm prepared to handle custom OpenWrt configuration on my end if needed.

Thank you for your assistance.

Best regards,
Miro