> In Bullseye, Ethernet cards did not have any IPv6 local-link, while Wifi > adapters did. In Bookworm, it the opposite.
Wifi is very dependant on how you configure it, but as you say, now on bookworm you are not getting IPv6 on them, so... let's go for ethernet cards... on my machines I don't see any inet6 address assigned to any of the ethernet ports asigned to the bridge ports either full physical or vlan based. > It should be neither. Only configured interfaces should have an IPv6 > local-link. For bridges, it means that only the bridge should have an IPv6 > local-link, not the interfaces attached to it. I agree on this, can you share your setup so that I can try to replicate it? Also... is there any Router Advertisement Daemon or dhcpV6 daemon assigning ipV6 addresses? Regards... -- Manty/BestiaTester -> http://manty.net