We have a customer who uses a Cisco small business switch to power his PoE IP phones. That is its only purpose. The switch pulled an IP address from his network server and all is well, except we need to know the IP address the Cisco switch is using. We have access via the console port, but can't find a command to use to display the address the switch has taken. We really, really don't want to default this switch and start from scratch. Does anyone know the CLI command to show the IP address? Common sense would say something with the 'show' command would work, but we can't find anything in the documentation.

Thanks.

Depending on the model of the switch, a show run command should give you what you are looking for.

'sh ip arp' should give you want you want... Or you could cheat and use a network analyzer, compare the mac addresses. Some of them even identify the manufacturer by mac. I had a free one on my iPhone but can't remember what it was called.

Thanks, guys. WE are resisting the best we can, but networking knowledge is slowly becoming part of our daily stuff. Sheesh.

Really?? And your iphone obviously needed to be connected to the network via a wireless connection??

Was it from the app store??

Yeah it was from the app store... Network Analyzer Lite was the one I used most but there are others that do some cool things.

Why not check the active DHCP leases on the network server? Most Cisco SMB switches have a web interface, so you can easily figure out which DHCP IP address is for the switch by copying and pasting the suspect IP address into your web browser on a computer connected to the local network.