How Do I View the MAC Address Corresponding to a Public IP Address?

Sorry, the MAC address of the Internet IP cannot be viewed, and it is more accurate to say that there is no way to view it.

The reasons are as follows: 1. The general way of computer Internet access is through the router (large and small are not distinguished), and one of the technologies used after using the router is NAT or called PAT, the addresses on both sides of the route belong to different network segments, and the MAC address of the IP of another network segment cannot be obtained across the network segment, because MAC belongs to layer 2 in the OSI model, and IP belongs to layer 3.

This way, no matter what your external IP address is, it will not appear in your computer's ARP table, so you will not be able to get the MAC address of the corresponding IP.

2. If you use the computer to dial directly and obtain an IP address of the Internet, then you can only view the MAC corresponding to the IP address of the device (gateway device) you are connected to with ARP -A, and the MAC address of other external networks is still not available.

3. Another assumption is that if you are a network maintenance personnel of an operator and can control the node equipment, you can still only view the MAC in the same network segment, and the MAC address is applied at Layer 2, not like IP. If you get a Mac in a small LAN, it will have a certain value, but the MAC with an external IP is of little value, and a more important reason is that it is almost impossible to obtain.

Note: NAT PAT This is an address translation technique. It can map the private network address to the public network address, which is a solution to the IPv4 address exhaustion in the world, and it is also a widely used technology.

In the process of network use and maintenance, sometimes it is necessary to know the IP address and MAC address of the network card, how to check the IP address and MAC address of the network card in Windows 10 system? Please see this for how to view it.

Three ways to get the MAC address of the remote host under the dos command The first method: use the arp command, which should be familiar to many network or system administrators, and its use is very simple. To use the arp command to get the MAC address of a remote host, the administrator only needs to use it.

The ping command pings the IP address of the remote host, and then uses arp -a or arp -g to get an IP address.

and MAC addresses, so that the system administrator can obtain the MAC addresses of the remote hosts they need.

The second method: use the getmac command, which may be a little unfamiliar to some network administrators, but a lot.

We only need to use arp -a or arp -g to get remote 1

Method. 1. Check the local connection status.

1. Right-click "Network" and select "Properties".

2. Click "Change adapter settings".

3. Right-click on "Local Connection" with the mouse - select: Status.

4. Click "Details".

Then you can see the IP address of this Windows 7 computer.

Method. 2. Use the ipconfig all command to view.

1. Press the "Windows" + "R" combination button on the keyboard at the same time to open the running program box.

2. Open the cmd program interface: enter "cmd" in the run program box and press the enter key.

3. Enter the command "ipconfig all" in the cmd interface, and then press the enter key on the keyboard.

4. In the running result, you can also see the IP address, MAC address, subnet mask, gateway and DNS information of the Windows 7 computer, as shown in the following figure.

Click "System Preferences" in the Dock, enter the System Preferences interface, under the "Internet & Wireless" option, find and click on the "Network" setting, under the "Ethernet" option of the connection type, there will be IP address, mask, router address, DNS address, etc. on the right side.

If you have a broadband dial-up connection, then click on the "Broadband Connection" option, and then click on the "Advanced" button on the right, so that you can see the IP address after broadband dial-up.

Open the terminal, we use the method of entering the command to query the IP address to query the IP address, enter "ifconfig" in the terminal and press enter to view the IP address.

First, turn on your Mac computer, find the "Command" option icon in the desktop dock bar, and click to open it.

2. Then, select "New Window" in the options and click Open.

3. Then, enter the command "ifconfig" in the window.

4. Finally, you can see that the window displays "Local IP and MAC Address", and the problem is solved.

Tools Required:

A Mac computer that has been involved in the Internet.

Steps:1Open System Preferences

2.Open Network

3.Select the Advanced option.

4.Click the [Hardware] tab to view the MAC address of the machine.

Connect to the router and see the IP and MAC address of the unit in the router.

Tools Raw materials.

Mac.

Method steps.

1. Click "System Preferences" in the Dock to enter the interface.

2. Under the "Internet & Wireless" option, click "Network".

3. Select "Ethernet", and the IP address, mask, and router address DNS address will appear on the right.

4. If it is a broadband dial-up connection, click "Broadband Connection" and click "Advanced" on the right to view the IP address after broadband dial-up.

5. Open the terminal.

6. Enter "ifconfig" in the terminal and click Enter.

7. The IP address of the Ethernet NIC is ", and the MAC address is 00:0C:29:26:BC:07.