I am running an Airport Express (New Version) version 7.6.3. I have a wired device plugged into the LAN port, and am trying to determine the IP address of that device. When I open the Airport Utility, it shows all the wireless clients, but does not seem to show the wired client. How can I find the IP address of the wired client?
AirPort Utility 6.x, which is used in Lion, Mountain Lion and Mavericks does not display the IP addresses of Ethernet connected clients.
If you assign a Reserved IP address for the device based on its MAC Address, at least you will know what IP address that the device is receiving.
If you are using AirPort Utility 5.x with Leopard or Snow Leopard, we can tell you how to find the IP address of wired Ethernet clients. Post back if you need that information.
I realize this is old but I'm tired of googling this and not finding an answer that works.
To find all the addresses used on your Airport Express (Using Terminal):
arp -na
You won't get names but at least you won't have to search all 254 addresses.
Airport Express Wired LAN Port IP
