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Cake day: June 12th, 2023

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  • Not a professional networking guy either but here’s my opinion.

    What I would do is use the ISP router as is, open all ports on it (except to itself, hopefully it doesn’t do that…), and put a firewall in between the router and everything else that controls the actual access to everything behind it (in bridge mode between the two network interfaces of the firewall, so you only have the one network).

    Could a potential second router also assign addresses to devices in that globally routable space directly?

    Devices in IPv6 assign addresses themselves via SLAAC, you just need one device advertising the prefix which the ISP router should already do. The firewall should be able to just purely be there for packet filtering. If you need fixed addresses for public facing servers I would just assign them manually to the respective boxes as you likely also need to add them to public DNS manually anyway.













  • The easy way is to just use tunnelbroker.net, that is what I currently have (this would use one of their assigned net blocks, not the one from the VPS). Set it up on the Pi, set up IP forwarding with appropriate firewall rules, make the Pi serve RA so clients can assign themselves an IP, done (IIRC).

    If you want to set up the v6/v4 gateway yourself, I would do this with a /64 you can fully route to your home network like you would get with tunnelbroker.net because then you don’t have to deal with the network split and essentially two gateways for the same network (your Pi and the VPS), because otherwise your clients would assume the VPS is directly reachable since it’s in the same network when in reality it would have to go through the gateway (you would have to set up an extra route in that case on every client, I think). You’d need a second network from Oracle for this.

    But it’s pretty much the same thing I would assume plus the setup on the VPS side, make the VPN route your /64 block (or use 6in4 which is what tunnelbroker.net uses), configure IP forwarding on the Pi and the VPS between the VPN interface and local/WAN respectively.