Below is a table that highlights the differences between IP addresses and MAC addresses. This is exactly why MAC addresses are only important to the Local Area Network (LAN) and are not relevant to the data stream that leaves the LAN. The MAC address identifies a device locally whereas an IP address identifies the device globally. These are both used to identify a device but they do it differently. In order to facilitate communication between devices on a network, two types of addresses are necessary: MAC addresses and IP addresses.

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Hence if your laptop has an Ethernet port and Wi-Fi built-in, it means it has to have two MAC addresses. How? See, each network interface in the device must have its unique MAC address paired with it. Important to note is that one device, such as a laptop, can have multiple MAC addresses. This is done by the manufacturer during production and cannot be changed. The MAC address is attached to the Network Interface Card (NIC) on all devices that can connect to the internet. Technically, a MAC address can be defined as a physical address that uniquely identifies a device on a specific network. MAC is an acronym for Media Access Control and is also known as Burned In Address (BIA) or physical address or hardware address.

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If you do not see your operating system listed, refer to your device’s user manual or product support website. If this does not work, refer to your device’s user manual. In most cases, you can follow this procedure to locate your MAC address:Ī WiFi Address or WiFi MAC Address displays.

This is your device’s MAC address.Ī Wi-Fi Address displays.

Select Apple Icon > System Preferences > Network > Advanced.Ī WiFi Address or Airport Address displays.

This is your computer’s Ethernet MAC address. Under Ethernet adapter Wireless Network Connection, a Physical Address displays.

In the command prompt, type ipconfig /all.

The physical address is your device’s MAC address.

Click Windows Start or press the Windows key.Ī physical address displays for each adapter.

You can block or allow service to a specific device if you know its MAC address.Ĭlick the link for your operating system: If your computer has multiple network adapters (for example, an Ethernet adapter and a wireless adapter), each adapter has its own MAC address.

Follow the steps for the operating system that you use.Įxample of a MAC address: 00:00:00:a1:2b:ccĮvery device connected to your home network has a unique MAC address. Follow these instructions to find your computer or mobile device’s media access control address (MAC address).

How to check mac address of pc