任何连接到 WiFi 网络的^{(connects to a WiFi network)}设备都必须使用唯一的网络地址向网络标识自己。这种称为媒体访问控制^{(Media Access Control)}( MAC ) 地址的唯一标识符可帮助网络管理员或观察员随时间跟踪或分析每个用户的网络活动^{(track or profile every user’s network activity)}和位置。

虽然大多数时候您可能不必担心设备的MAC地址，但有时您需要知道网络适配器的MAC地址。这样，您可以识别设备或在路由器上配置网络权限^{(configure networking permissions on your router)}。

无论您出于何种原因需要MAC地址，我们都会向您展示几种在Mac和 PC 上执行此操作的方法。

什么是 MAC 地址？^{(What is a MAC Address?)}

MAC地址是一个唯一的17 个字符（例如 00:1A:C2:9B:00:68），用作嵌入在计算机网络接口控制器 ( NIC ) 卡上的硬件标识符。

唯一标识符由设备制造商分配并永久绑定到您的设备。这允许本地网络内的设备之间的通信以启动连接。

MAC地址有两种主要类型：通用管理地址^{(Administered Address)}( UAA ) 和本地管理地址^{(Administered Address)}( LAA )。

UAA是更流行的类型，由设备制造商分配，而LAA会更改适配器的MAC地址。您可以将LAA分配给您的网络设备，它将覆盖制造商分配的地址。

您设备的MAC地址有时会与IP 地址^{(IP address)}混淆，即使两者都用于在 Internet 上识别您的设备，但存在一些重大差异。 

MAC地址由设备制造商永久分配，以将您的机器与其他机器区别开来，并且设计为不可修改。IP 地址处理来自您的设备和网络的逻辑可路由连接，并且可以根据位置进行更改^{(change based on location)}。

您的设备的MAC地址在您的本地网络内使用，而 IP 地址可在全球范围内用于识别网络设备。

如何在您的 PC 或 Mac 上查找 MAC 地址^{(How to Find a MAC Address On Your PC or Mac)}

您需要找出设备的MAC^(MAC)地址有几个原因，包括：

• 跟踪您的设备。
• 防止不需要的网络访问^{(Prevent unwanted network access)}。
• 在网络中查找接收者或发送者^{(Find receivers or senders in the network)}。
• 维修^(Service)您的设备。很多时候，您需要提供您的MAC地址。
• ^(Spoof)在向互联网服务提供商注册家庭网络网关设备时，欺骗不同设备的身份。

如何在 Windows 10 PC 上查找 MAC 地址^{(How to Find a MAC Address on a Windows 10 PC)}

您可以通过设置^(Settings)、控制面​​板^{(Control Panel)}、系统信息^{(System Information)}、命令提示符^{(Command Prompt)}和PowerShell在您的 Windows 10 PC 上找到MAC地址。

如何使用设置在您的 PC 上查找 MAC 地址^{(How to Find a MAC Address on Your PC Using Settings)}

1. 为此，请选择Start > Settings > Network & Internet。

1. 根据您的网络连接，选择Ethernet或WiFi。

1. 在您的连接^(connection)下选择硬件属性^{(Hardware Properties)}。

1. 在“属性^(Properties)”部分检查您 PC的MAC 地址。^{(MAC address)}

如何使用控制面板在您的 PC 上查找 MAC 地址^{(How to Find MAC Address on Your PC Using Control Panel)}

1. 为此，请打开Control Panel > Network & Internet。

1. 选择网络和共享中心^{(Network and Sharing Center)}。

1. 接下来，选择更改适配器设置^{(Change adapter settings)}。

1. 根据您的连接，双击以太网^(Ethernet)或WiFi。

1. 双击WiFi并选择详细信息。^(Details.)

1. 检查物理地址^{(Physical address)}旁边的MAC^{(MAC address)}地址。

如何通过命令提示符在 PC 上查找 MAC 地址^{(How to Find a MAC Address on Your PC Via Command Prompt)}

1. 为此，请在搜索框中键入CMD并选择^(CMD)Command Prompt > Run as administrator。

1. 输入ipconfig /all命令并按Enter。您将看到PC 上安装的每个网卡的 MAC 地址，以及与^(MAC)硬件卡无关的MAC地址。^(MAC)

1. 检查物理地址^{(Physical address)}字段中的 MAC 地址。

注意^(Note)：如果您想清楚地查看活动网络适配器的MAC信息，请键入^(MAC)getmac /v并按Enter。

如何使用 Windows PowerShell 在您的 PC 上查找 MAC 地址^{(How to Find a MAC Address on Your PC Using Windows PowerShell)}

1. 为此，请右键单击Start > Windows PowerShell。

1. 输入Get-NetAdapter命令并按Enter。

1. 检查网络适配器的MAC 地址^{(MAC address)}。您将看到 PC 上配置的每个网络适配器的列表及其MAC地址。

如何使用系统信息在您的 PC 上查找 MAC 地址^{(How to Find a MAC Address on Your PC Using System Information)}

1. 为此，请在搜索栏中键入系统信息^{(System Information)}并从搜索结果中选择它。

1. 接下来，展开组件^(Components)部分，然后选择网络^(Network)部分。

1. 选择Adapter，转到您的网络适配器并确认您计算机的MAC地址。

如何在 Mac 上查找 MAC 地址^{(How to Find a MAC Address on a Mac)}

1. 要在Mac^(Mac)计算机上查找MAC地址，请选择Menu > System Preferences > Network。

1. 选择高级^(Advanced)。

1. 检查运行Open Transport的Mac的^(Mac)Info或User Mode/AdvancedMac运行MacTCP ，则检查^(MacTCP)以太网^(Ethernet)图标下的 MAC 地址。您还可以选择WiFi选项卡以查看WiFi 地址^{(WiFi address)}或机场地址^{(Airport Address)}显示下的MAC地址。^(MAC)

了解您计算机的 MAC 地址^{(Know Your Computer’s MAC Address)}

我们希望您能够找到您的 Windows 10 PC 或Mac的^(Mac)MAC地址。从我们的指南中了解^(Learn)有关MAC地址如何工作的更多信息，了解^(MAC)如何更改或欺骗您的 MAC 地址^{(how to change or spoof your MAC address)}，以及如何根据 MA​​C地址确定您的 IP 地址^{(determine your IP address from a MAC address)}。 

What is a MAC Address and How to Find It On PC or Mac

Any device that connects to a WiFi network must identify itself to the network using a unique network address. This unique identifier, known as the Media Access Control (MAC) address helps the network administrators or observers track or profile every user’s network activity and location over time.

While you may not have to worry about your device’s MAC address most of the time, there are times you need to know your network adapter’s MAC address. This way, you can identify the device or configure networking permissions on your router.

Whatever your reasons for needing your MAC address, we’ll show you several ways to do it on both Mac and PC.

What is a MAC Address?

The MAC address is a unique 17-character (00:1A:C2:9B:00:68, for example) which serves as a hardware identifier that’s embedded on your computer’s network interface controller (NIC) card.

The unique identifier is assigned by the device manufacturer and permanently tied to your device. This allows for communication between devices within a local network to initiate a connection.

There are two main types of MAC addresses: Universally Administered Address (UAA) and Locally Administered Address (LAA).

The UAA is the more popular type, which is assigned by the device manufacturer, while the LAA changes your adapter’s MAC address. You can assign the LAA to your network device and it will override the address assigned by the manufacturer.

Your device’s MAC address is sometimes confused for the IP address even though both are used to identify your device on the internet, but there are some major differences. 

MAC addresses are permanently assigned by the device manufacturer to identify your machine from others and are designed not to be modified. IP addresses handle the logical routable connection from your devices and networks, and can change based on location.

Your device’s MAC address is used inside your local network, while the IP address can be used across the world to identify network devices.

How to Find a MAC Address On Your PC or Mac

There are several reasons why you need to figure out your device’s MAC address including to:

• Track your device.
• Prevent unwanted network access.
• Find receivers or senders in the network.
• Service your device. Many times you’ll need to provide your MAC address.
• Spoof the identity of a different device when registering a home network gateway device with an internet service provider.

How to Find a MAC Address on a Windows 10 PC

You can find MAC addresses on your Windows 10 PC via the Settings, Control Panel, System Information, Command Prompt, and PowerShell.

How to Find a MAC Address on Your PC Using Settings

1. To do this, select Start > Settings > Network & Internet.

1. Depending on your network connection, select Ethernet or WiFi.

1. Select Hardware Properties under your connection.

1. Check the MAC address of your PC under the Properties section.

How to Find MAC Address on Your PC Using Control Panel

1. To do this, open Control Panel > Network & Internet.

1. Select Network and Sharing Center.

1. Next, select Change adapter settings.

1. Depending on your connection, double-click Ethernet or WiFi.

1. Double-click WiFi and select Details.

1. Check your MAC address next to the Physical address.

How to Find a MAC Address on Your PC Via Command Prompt

1. To do this, type CMD in the search box and select Command Prompt > Run as administrator.

1. Enter the ipconfig /all command and press Enter. You’ll see the MAC addresses for every network card installed on your PC, plus MAC addresses that aren’t associated with hardware cards.

1. Check for the MAC address in the Physical address field.

Note: If you want to see the MAC information of the active network adapters clearly, type getmac /v and press Enter.

How to Find a MAC Address on Your PC Using Windows PowerShell

1. To do this, right-click Start > Windows PowerShell.

1. Enter Get-NetAdapter command and press Enter.

1. Check your network adapter’s MAC address. You’ll see a list of each network adapter configured on your PC along with their MAC addresses.

How to Find a MAC Address on Your PC Using System Information

1. To do this, type System Information in the search bar and select it from the search results.

1. Next, expand the Components section and then select the Network section.

1. Select Adapter, go to your network adapter and confirm your computer’s MAC address.

How to Find a MAC Address on a Mac

1. To find the MAC address on your Mac computer, select Menu > System Preferences > Network.

1. Select Advanced.

1. Check for the MAC address under Info or User Mode/Advanced for a Mac that runs Open Transport, or under the Ethernet icon if your Mac runs MacTCP. You can also select the WiFi tab to see the MAC address under the WiFi address or Airport Address display.

Know Your Computer’s MAC Address

We hope you were able to find the MAC address for your Windows 10 PC or Mac. Learn more about how MAC addresses work from our guides on how to change or spoof your MAC address, and how to determine your IP address from a MAC address. 

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