[CentOS] find IP address of device on network based on MAC address

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