When adding/modifying an ACL rule, we can pick a LAN address to apply it to. Clients with IPv6 addresses have more than 1 address, generally at least 2: the link-local address and the normal inet address.
Currently, the ACL setup page only shows the first IPv6 address for each client, when picking the address. This is very unhelpful, as typically the first (chronological order) address to be assigned is the link-local, and the link-local address cannot be used to reach the device from WAN. See below:
In the Clients > View details > IPv6, you can see there are multiple addresses:
So, in the situation of wanting to allow a local device to be reachable from the internet, for example to access a home lab/server, the destination addresses suggested by the ACL setup page are entirely unhelpful.
There should be an entry for each address of each client.
Furthermore, it is unclear to me whether LAN IPv6 inet addresses are static or dynamic, and if they are dynamic, how to configure the ACL to refer to a MAC address so that IPv6 inet address changes do not affect the ACL rule and it will always refer to that MAC address’ current IPv6 inet address.

