diff --git a/README.md b/README.md
index 27d7842..5f23014 100644
--- a/README.md
+++ b/README.md
@@ -186,6 +186,9 @@ iface eno1.503 inet static
 ## List alive IPs on Network (nmap)
 `sudo nmap -n -sn 192.168.56.0/24 -oG - | awk '/Up$/{print $2}' | sort -V`
 
+## arp-scan to get macs of network hosts
+`arp-scan --interface=eth0 192.168.1.0/24`
+
 ## Ping numerous IPs at once (using GNU Parallel)
 `parallel -u ping ::: host1 host2 host3`