Can I determine the current IP from a known MAC Address?
linux, networking
Solution
I know is old, but the simplest way in linux is:
arp -a | grep "00:1E:C9:56:3C:8E"
The point of this is to ignore if is connected in one or another network meanwhile each device can see each other.
Problem
I have a shell script which uses etherwake to wake up a machine on my local network. After the machine is awake, I'm not sure of the IP address. While trying to answer my own question I came up with: ``` ip=$(ping -c 1 hostname | head -1 | awk '{print $3}' | sed 's/[()]//g') ``` This solution stipulates that I know the hostname of the remote machine, which isn't so onerous. Is there a way to get the IP if all I know is the MAC address?