[CentOS] find IP address of device on network based on MAC address
Les Mikesell
lesmikesell at gmail.com
Fri Dec 14 20:21:26 UTC 2007
Jerry Geis wrote:
> I have a device on my network that is not DHCP and I dont know the IP
> address of it
> and it has not method of finding it or changing it unless you know the
> IP address (setable by browser).
>
> Is there a way on linux, based on MAC address, to get the IP of the unit?
You accumulate a table of mac<->ip assocations, but only after
communicating with something. arp -a will show the current entries
(which expire fairly quickly). You might ping everything in the network
range, then look for the mac in the arp list.
--
Les Mikesell
lesmikesell at gmail.com
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