How to fill in the MAC address in English?

Summary. Yes (win7), right-click on the network icon to open the Network and Sharing Center.

Yes Lu crack like this (win7), right-click the network icon, open the network and sharing center as shown in the figure, local connection (root reputation model according to your network card selection) right-click, properties, as shown in the figure operation, and finally enter the MAC address in the place of value.

Check it out below:

The devices on the Internet communicate through IP addresses, and in fact, the underlying objects of communication are distinguished by MAC addresses.

Tools: System settings, network card.

1. Generally speaking, the MAC address refers to the MAC of the network card, find the "network" right-click attribute.

2. Enter the network management center, or find the shared network management menu through the control panel.

3. Click to enter the management NIC device and view the local connection properties of the NIC that you need to view.

4. Click on the local connection status to view, the physical address is the MAC address of the computer.

Explain the difference between MAC and IP address

1. For a device on the network, such as a computer or a router, its IP address is variable (but must be unique), while the MAC address is immutable. We can assign any IP address to a host as needed, for example, we can assign an IP address to a computer on a local area network, or we can change it to. Once a network device (such as a network card or router) is produced, its MAC address is always unique and cannot be changed by the user.

2. The length is different. The IP address is 32 bits and the MAC address is 48 bits.

3. The distribution basis is different. The assignment of IP addresses is based on the network topology, and the assignment of MAC addresses is based on the manufacturer.

4. The addressing protocol layer is different. The IP address is applied to the third layer of the OSI, which is the network layer, while the MAC address is used to the second layer of the OSI, which is the data link layer. The link-layer protocol enables data to be passed from one node to another node on the same link (via MAC address), while the network layer protocol enables data to be passed from one network to another (ARP finds the MAC address of the intermediate node based on the destination IP address, transmits it through the intermediate node, and finally reaches the destination network).

oui。The MAC address is 48 bits (6 bytes) long and is usually represented as 12 hexadecimal numbers.

For example, 00-16-ea-ae-3c-40 is a MAC address, where the first 3 bytes, the hexadecimal number 00-16-EA represents the number of the network hardware manufacturer, which is assigned by the IEEE (Institute of Electrical and Electronics Engineers), and the last 3 bytes.

The hexadecimal number AE-3C-40 represents the serial number of a network product (such as a network card) manufactured by the manufacturer. As long as you don't change your MAC address, your MAC address is unique in the world. Figuratively speaking, the MAC address is like the ID number on the ID card, which is unique.

How to get it:

After entering the command "ipconfig all" in the command prompt, some network information of the current computer will be displayed, among which the item with the word "physical address" is the MAC address of the network card in the current computer. Of course, if you have more than one network card installed on your computer, there will be more than one "physical address" to the brigade.

To put it simply, it means that the iPhone wants to get the connected device of the LAN (router) where you are located. This feature is designed to protect your local network from scanning devices on your local network indiscriminately by a large number of apps.

In previous versions of iOS, apps could scan devices on their local network at will, so apps could easily get the names and MAC addresses of all devices on their local network. Nowadays, iPhones can already identify specific LANs by Mac addresses.

MAC address is an address that confirms the location of network devices, each network card has a unique MAC address, plus the MAC address is also unique, the device manufacturer will allocate MAC according to a certain rule, so different LANs are unique and can be identified.

IP addresses are logic-based, flexible, hardware-free, and easy to remember. The MAC address is consistent with the hardware to a certain extent, is physical, and can identify a specific network node. Both types of addresses have their own advantages, and they can be used differently depending on the conditions.

Most ways to access the Internet are to organize hosts together through a local area network and then connect to them through devices such as switches or routers and the Internet. As a result, the question arises of how to distinguish between specific users and prevent IP address theft. Since the IP address is only a logical identifier that can be modified by anyone at will, it cannot be used to specifically identify a user.

This is not the case with MAC addresses, which are solidified in the network card. Theoretically, unless the hardware is stolen, i.e., the network card, it generally cannot be impersonated. Based on this characteristic of MAC addresses, the LAN adopts the method of identifying specific users with MAC addresses.