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How to Find MAC Address using IP Address ?

If you know the IP address of the Host, but its not within your physical reach but you want to know what is its MAC address, then just follow below mentioned steps.

Make sure you ping that IP at-least once so this can get address into ARP table.

$ ping -c 1

PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=128 time=4.68 ms— ping statistics —
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 4.681/4.681/4.681/0.000 ms

Now user arp command to get rest of details of that IP,

$ arp

Address           HWtype HWaddress        Flags Mask Iface ether     MACHINE_MAC C               wlan0

Here, we can see the 3rd column as MAC address of the machine / device.

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