what is hwaddr in linux

In Linux, hwaddr stands for hardware address. It is a unique identifier assigned to a network device. It is used to uniquely identify and address the device on the physical layer. It is assigned by the manufacturer of the network device and is specified on the device. Written when manufactured, command line tools can be used to view and configure the device's MAC address.

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

In Linux, hwaddr represents the hardware address (Hardware Address), also known as the MAC address (Media Access Control Address). A MAC address is a unique identifier assigned to a network device, such as a network card. It is represented by six hexadecimal pairs, for example: 00:1A:2B:3C:4D:5E.

Each network device has a unique MAC address, which is used to identify and address the device within the LAN. MAC addresses are assigned by the manufacturer of network equipment and written when the device is manufactured. In Linux systems, you can use command line tools (such as ifconfig or ip command) to view and configure the MAC address of the device.

MAC address plays an important role in network communication and is used to uniquely identify and address devices on the physical layer. It is different from an IP address, which is a logical address used at the network layer. MAC addresses are necessary to enable communication between devices within a local area network.

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