Another protocol for example would be IPX. IP is a protocol that is used on a layer above ethernet. How do IP addresses and MAC addresses work together? There are special MAC addresses, one for example is ff:ff:ff:ff:ff:ff, which is the broadcast address and addresses every network adapter in the network. If the addresses match, the packet is processed, otherwise it is discarded. If a network adapter is receiving a packet, it is comparing the packet’s destination MAC address to the adapter’s own MAC address. Packets that are sent on the ethernet are always coming from a MAC address and sent to a MAC address. Network cards each have a unique MAC address. MAC addresses are the low level basics that make your ethernet based network work.
If you do not see your operating system listed, refer to your device’s user manual or product support website.SuperUser contributor Werner Henze offers some insight into the function of the MAC address: 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. 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).
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