Introduction:
You want to do a google search and the page returns: "403. That’s an error.
Your client does not have permission to get URL / from this server. That's all we know."
In my case I was using an IPv6 tunnel with Hurricane Electric, specifically the /64 that they deliver in the tunnels.
Solution?
Ask Hurricane Electric at the portal for a /48 routed. That's it! Then I removed the old /64 prefix from the router's SLAAC, leaving only a /64 belonging to the /48.
Good luck!
