I have set nat66 on OpenWrt and set port forward to forward requests from WAN to the ULA address.
When I use an IPv4 address from a host in the LAN area to access the WAN interface IP of OpenWrt, the traffic is correctly forwarded to the LAN area. But when I still use the same host but use an IPv6 address to access the WAN interface IP, forwarding does not work.
I went to check the firewall rules and found that the rules of the IPv6 nat reflection were not correctly added.
Why is this happening? If someone could help me solve it, I would be very grateful to them!