Show IP of client connected to each port

RouterOS General
1

Hi, I have a CRS3XX running the latest RouterOS. Is it possible to show the IP address of the client connected to each port? I’ve looked under IP/ARP, but some entries look old and the list is incomplete.

Thanks you

2

You could do a tool/ ip scan, which should refresh the Arp table.

Arp entries are often only seen/updated when the router/switch needs them.
Which is rarely if running as an L2 switch.

3

Thanks…just tried that, but unfortunately, I don’t think that shows the port each device is connected to? Is there another way?

Actually, I see what you mean…now the IP ARP table is populated. Thank you!

4

The ARP table is only populated for traffic the device itself has with the clients.
So when you use it as a real switch, without any service that the clients use (e.g. DNS, NTP, routing), the ARP list will not be populated.
Running an IP scan is making traffic from the device, and it populates the ARP table, but it will go stale again after a while.