Winbox should have an ARP IP-address column under Wireless Tables->Registration. It shouldn't be that hard to implement.

You can see which MAC has which IP i /ip dhcp-server lease print

or you can make PHP with this information using PHP API.

You can see which MAC has which IP i /ip dhcp-server lease print

or you can make PHP with this information using PHP API.

Yes, but can I code it into Winbox myself? Unlikely.

Of course not, but it is a question is it logical to display IP's together with "wireless registration" information. What if you don't have DHCP server? Or what about not logged PPPoE users (they don't have IP yet)? Or what if you have one-to-one NAT (they have 2 IP's).

But if DHCP is on another RouterBoard ?

Of course not, but it is a question is it logical to display IP's together with "wireless registration" information. What if you don't have DHCP server? Or what about not logged PPPoE users (they don't have IP yet)? Or what if you have one-to-one NAT (they have 2 IP's).

If ARP table has that MAC address resolved then what does prevent showing it?