I am writing to inquire about a specific behavior I am observing in the WinBox Neighbors tab.
I have configured my router interface with the static IPv4 address 192.168.2.20. However, when viewing the device under the "Neighbors" tab in WinBox (v4.0beta39), the same physical device (MAC Address: 78:9A:18:62:EC:5E) appears twice in the list:
One entry shows the configured IPv4 address: 192.168.2.20
The second entry shows an IPv6 link-local address: fe80::7a9a:18ff:fe62:ec5e
There is no issue here. That works as intended, you can double-click on that fe80::7a9a:18ff:fe62:ec5e address and connect to your device via IPv6 and it should work (if not blocked by firewall).
If you've not completely disabled IPv6 then the non-slave ports as well as interfaces like bridges and VLANs all have a link-local IPv6 address automatically assigned (see with /ipv6 address print where link-local). Devices connected to those interfaces can directly talk to the router through those link-local addresses (if the firewall allows).
One more I observed when I attempt to log into the router using its IPv4 address (192.168.2.20), the connection fails immediately and displays the error: "ERR: The remote host closed the connection". However, if I attempt to log in using the device's MAC address (78:9A:18:62:EC:5E) instead, the login succeeds without any issues. Could you clarify why the remote host is dropping the IPv4 ?
One possibility is that the winbox service has a restriction on the allowed IP addresses / address ranges. You should login using MAC address, then go to IP -> Services, and check this Available From setting on the winbox service:
