I noticed by accident that in my home network IPv6 is not functional, so I decided to fix that, and started studying about IPv6.
I have an opnSense firewall which connect to my ISP port as WAN, and then the LAN. The point is that o do not get a GUA on my WAN, but I get it if I connect directly a pc to the ISP port…
The opnSense seems to be configured properly, and the ISP itself do provide IPv6 as I can get a GUA address when I connect my Linux laptop to the ISP router, so I am not sure…
Anybody has any hints?


Set the LAN ipv6 to track interface and it should work. You will likely also need to set a static ipv6 address on your LAN that is within the address given. SLAAC should take care of the rest.