i'm trying to go with ipv6 with opnsense between ISP modem and LAN ... not ok ..

[ledufakademy]

it's seems that opnsense default install block multicast traffic on lan ... why ?

(ffe80:: xxxxxx           f02::16            ip            Default deny rule ...)

[ledufakademy]

if i do a factory reset, then let default config ....
LAN computer with IPV6 ONLy can't connect to internet (for sure local link is working ...) ... (ipv4 can !)

[ledufakademy]

finally  get it wprking buit DHCPv only give ip not dns or gw parameter !