What is the term for the hardware coded address found on an interface?

The term for the hardware coded address found on an interface is the MAC Address. Each network interface card (NIC) or other network interface devices have a unique MAC address assigned to them at the time of manufacturing. This address operates at the data link layer of the OSI model and is used for identifying devices on a local network. MAC addresses are essential for network communication protocols, facilitating the correct routing of data packets within a local area network (LAN).

In contrast, options like the FQDN address, IP address, and interface address serve different purposes. The Fully Qualified Domain Name (FQDN) is used in DNS (Domain Name System) to resolve domain names to IP addresses but is not related to hardware addressing. An IP address is an address used for routing packets over the Internet or networks and can change, whereas a MAC address is fixed and unique to the hardware. The term "interface address" is not a standard term used to describe a specific type of address and does not accurately represent the hardware coding aspect associated with network interfaces.