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At work, we have a network with internal IP addresses given to machines. How can I find the MAC address of machines in my network whose IP address is known to me?
Also how do I find the MAC address of my router whose IP address I know?
I work on Ubuntu.
Erm, arping isn't needed. You can just use arp.
arp <ipaddress>
same thing with your gateway. netstat -rn to find your gateway then arp <ipaddress>, use arp -i <device> <ipaddress> if you want to force a specific interface.
you probably also want to use the -c 4 arguments if you decide to use arping.
After all is said and done you can simply type arp -a to get your current ARP table. another reason arping isn't ideal is that it's not installed by default on many systems.
Use arping as superuser:
sudo arping -I<interface> <IP>
