- Linksys WRT3200CS just changed from stock firmware to the most current OpwnWRT.
- Uplink is "Deutsche Glasfaser" fiber ISP with Dual-Stack and plain DHCP (no PPPoe, or such stuff)
- I'm running an OpenVPN Server internally, and my Clients are connecting to it.
This was working fine with the stock firmware. The only thing I had to configure was the firewall traffic forwarding to the scope global address of the OpenVPN server on the router.
After changing to OpwnWRT, this does not work anymore (yes, I have changed addresses and traffic rules).
I can see the UDP TLS initial packet on the server coming in, but the client does not get any response.
Interesting fact: the server can ping the client and traceroute looks good too.
It starts working as soon I configure a static route to the client on my server via the gateways LAN IPv6 ::1.
So I don't get why OpenWRT does not provide itself as the gateway to the clients.
I could certainly set a static route to 2003::/3 to the gateway... and it works too, but I do not want to do this on every system.
- what am I missing to configure?
- is there an understandable how-to for IPv6 around? I found hundreds of articles, blog posts, and forum threads, but they all seem to rely on any magic knowledge ...