To view the ARP table for a system, use the -a flag with the arp command. The arp command can be used to view the ARP table for a system, which contains a mapping of IP addresses to MAC addresses. There are a few different ways to get the MAC address of a remote device from the command line on a Linux system. Getting the MAC address of a remote device can be useful for troubleshooting or for identifying devices on a network. This is because MAC addresses are not tied to any particular network or protocol and are instead used to identify the hardware of a device. MAC addresses can be used to identify a device on a network even if it has been assigned a different IP address. They are assigned by the manufacturer and are usually stored in the device’s firmware. MAC addresses are used to uniquely identify devices on a network.
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