IPv6 router firewalls still should be stateful (Ie allow connections initiated from my LAN to the Internet, but don’t allow connections initiated from the Internet to my LAN).
Sure, if you are speaking about core routers, they don’t care about state. But for homes and offices, traffic direction matters for security.
Sure, if you are speaking about core routers, they don’t care about state. But for homes and offices, traffic direction matters for security.