Of course, put your own subnet in the address. ![]() If the device is not currently in the ARP table, then you can PING the broadcast from the switch (again, I'm doing this from my 3750X) by doingĪssuming you have a /24 subnet. If you don t have a layer 3 switch, you'll need to do the MAC to IP check on your layer 3 device/router - which means the syntax might be different - but once you've got the MAC address, finding the associated IP address from your network kit is trivial. This'll give you the MAC address of the device connected to the port concerned Switch# show mac address-table | include 1/0/30 Put in the interface number of the interface the NAS is connected to - for example, on my 3750X if I wanted to find the device connected to port g1/0/30, I would do Can someone please tell me how to find the IP Address of this device? I know the port on the Switch it's connected to? ![]() I have a NAS device which has a static IP Address but it was not documented and now we cannot connect to it.
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