network tools

Hi all,

Does anyone know a tool to detect the IP address of the a device given a MAC address only?


Thanks.

 

If it's on your own network segment, it's easy.

arp -a will show you the IP and MAC of every PC you've connected to recently. So,

- ping the broadcast address to get a local list of all PCs on the network segment. For instance, if you are at IP 192.168.8.14, you would do ping 192.168.8.255. This will put a record of all the IP & MAC addresses on the network into your arp cache.

- arp -a > c:\addresses.txt to send the info to a text file.

- either look thru the file or if there are lots of addresses, open the file in Excel or similar and do a search for the address you want.

If the target system is not on your segment, you most likely won't be able to learn it's IP address given only it's MAC address, as MAC addresses do not transend network segments.