

I think it’s mostly maintenance issues, the maintainers being employees of the company that originally wrote and donated the driver, so there’s been a backlog of bugs that have sat unfixed.
This new driver on the other hand builds off the preexisting kernel support for NTFS, and the maintainer seems better equipped to respond to bugs in a timely manner.

I’ve never used 6rd, but I did use 6to4 for a while (A long time ago) and I got a GUA from that. 6rd is closely related to 6to4 so I naïvely expect them to work similarly?
Now I did it all with OpenWRT, but the gist was you set the tunnel information on the WAN side in the webui, and it produced the configuration for the LAN side. Since it’s a tunnel you never actually set any of the v6 details on the actual WAN adapter, outside of routing (i.e. what v4 endpoint do you send stuff to).