Hi Mark,
Yet another non VPN expert here :)
I was playing with a Fortinet setup recently and I think it must be durable. You would have IPv4 for your VPNclient to connect to (that would have to be an Internet routable IP) and if you configure IPv6 inside your network client should be re-routed to the resource. My guess would be that the client will get local IPv6 "nat-ed" from the OpenVPN.
Working IPv6 DNS will probably be a good thing to start with.
You can control data flow by setting firewall rules for clients and "servers"
Give it a go but remember to block all but necessary ports visible from the Internet.
Cheerio!
Bart
W dniu środa, 16 lutego 2022 Mark Rogers <mark@more-solutions.co.uk> napisał(a):
> Just playing with ideas really but I would like to try setting up a
> VPN, accessed over IPv4, but where everything within it is IPv6.
> There's a few reasons, but they're mostly that I don't know enough
> IPv6 so it would force me to get to grips with it when working within
> the VPN.
>
> (My objective is to host a VPN to which devices (typically things like
> Raspberry Pi's) and "users" connect, with users having access to the
> devices but devices not having access to each other or anything else.
> No doubt this might change in future to require that some devices can
> access specific other services but they'd always be tied down.)
>
> Does this sound plausible? As an OpenVPN novice, is this something I
> should park until I know OpenVPN better?
>
> --
> Mark Rogers // More Solutions Ltd (Peterborough Office) // 0344 251 1450
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