Layer 2
arp -a
View the ARP table.
Explanation
The ARP table maps local IP addresses to MAC addresses. It is useful when troubleshooting duplicate IPs, local discovery, and device identity on the same network segment.
Syntax
arp -a
Show local ARP entries
Interface: 192.168.0.27 Internet Address Physical Address 192.168.0.1 1c-61-b4-aa-bb-cc 192.168.0.10 d8-5d-e2-11-22-33
Look for IP addresses and the MAC addresses associated with them.