MAC address
Network card identifier
A MAC address is a unique identifier assigned to a network device's hardware, used to distinguish it from other devices on a local network.
Unlike IP addresses, which can change, MAC addresses are typically permanent and built into the device at manufacture.
The term comes from Media Access Control, a networking protocol layer.
The router logs every MAC address that connects to it.
Wired networking standard
- NICHardware for network connectivity
- network cardHardware enabling connectivity
- adapterDevice enabling equipment compatibility
- LANLocalized computer linkage
frame · packet · ARP · broadcast · unicast · multicast · switch · router
Sixteen-digit numeral system
Approved access roster
- blacklistRecord of prohibited entities
- port securityProtection of maritime facilities
ethernet
Wired networking standard
- NICHardware for network connectivity
- network cardHardware enabling connectivity
- adapterDevice enabling equipment compatibility
LAN · frame · packet · ARP · broadcast · unicast · multicast · switch · router · interface
unique identifier
Unrepeated distinguishing code
hexadecimal
Sixteen-digit numeral system
whitelist
Approved access roster
- blacklistRecord of prohibited entities
- port securityProtection of maritime facilities
MAC addressIP address
Device's unique network number
hostname · domain name · URL