The subnet mask helps split your IP address into the host and the networks. “What is my subnet mask? Where can I find it?” – These are very common questions that people usually wonder. Let us show you how to find your subnet mask quickly and simply in this blog!
What is My Subnet Mask on Windows Devices?
Windows is the most common operating system for both computers and laptops. You will find your subnet mask in 3-easy steps.
You need to open “Command Prompt.” There are two ways to open this on a Windows computer. You can press the “Windows” button together with the “R” button on your keyboard.
If this way does not work, you can search “Command Prompt” by double-clicking the Windows icon on the left bottom of your screen. Then, you type what you need to search and press the “Enter” button.
Next, we will enter the ipconfig command. It would help if you typed the words “ipconfig /all” as in the picture below. Then, you press the “Enter” button to start the Windows ipconfig program.
By running this program, you will find out a list of all of your network information. Thus, you can keep track of all of your network connections with the help of the Windows ipconfig program.
If you fail to run this program, you should check your typing. The words “ipconfig /all” should have a space between them. Be aware when you are typing this!
You can see your subnet mask on the screen now! We need to find the “Ethernet adapter Local Area Connection.” section, where the subnet mask is located.
When you find the line “Subnet mask,” you can see your subnet mask number right across. Otherwise, you should find a number starting with a string of 255s, such as 255.255.255.0.
You also can find your subnet mask through the “Control Panel.” You should enter the following sections, respectively: “Network and Sharing Center,” “Change adapter settings,” and “Local Area Connection.”
In the last section, you should right-click to choose the “Status” option and click “Detail” in the popped-up window. You can find your subnet mask here.
See also: What is My Default Gateway?
How to Find My Subnet Mask on Macbooks?
If you want to find your subnet mask on your Macbook or iMac, you only need to follow our 6-steps method for Apple devices.
- Step 1: You should look for the “System Preferences” icon on your dock and click on it. If you can not find it on your dock, you might click the top left of the screen – the Apple logo and choose “System Preferences.”
- Step 2: On the “System Preferences” window, you should click the “Network” icon. If you can not find this icon, you can search the Network in the bar on the window’s upper right.
- Step 3: Now, you should look at the list of internet connections on the left of your window. The connection you should click on is the one with a green dot next to, and the word “Connected” underneath.
- Step 4: After you click on an internet connection, you will see a window of it popping up. You need to click on the “Advanced” on the lower right of the window.
- Step 5: You should select the TCP/IP tab in the “Advanced” window to find your subnet mask.
- Step 6: There should be a line with a clear label of “Subnet Mask” waiting for you. Your subnet mask number will start with a 225.
Where is My Subnet Mask on Linux Appliances?
Neither the Windows method nor the iOS method solves your problem. Here is our instruction for Linux users like you.
- Step 1: You need to open a command line. This step is very basic in using Linux. Therefore, you should make sure that you master this step before moving on to the next one.
- Step 2: In the window that you open, you can type the word “ifconfig” and press the “Enter” button. If something goes wrong, you should follow some instructions to gain administrator access.
- Step 3: You should find a line with the word “Mask” or “Subnet Mask” on the window. Once again, your subnet mask number will start with a 225. So, you can see your subnet mask if you find that number.
How to Set Up a Subnet Mask on a Smart TV or Other Devices?
Besides computers or laptops, there are many devices that you need to connect to the Internet to use, such as smart TVs, printers, etc. We will tell you some tips to set up a subnet mask for your smart TV.
You should set up on your smart TV the same subnet mask number as the number on your computer. The reason is that the subnet mask number is specific to your local network.
In the worst case that you can’t find your subnet mask, you can use the most common one, 255.255.255.0.
If you can not access the Internet with that subnet mask number, you should start checking your IP address. You will see your IP address above your subnet mask.
You should copy the IP address on your computer and replace numbers after the last period with a number below 254. For example, if your computer’s IP address is 192.168.1.1, set your device’s IP address to 192.168.1.100.
Your IP address also could be found on your router’s label or the Internet. Some IP addresses such as 192.168.1.100, 192.168.0.100, 192.168.10.100, or 192.168.2.100 for you to try randomly
What is my subnet mask? We hope you have found out the answer to your wonder by reading this post. You only need some quick and easy steps to find your subnet mask and set up a subnet mask for your devices. If you find our blog helpful for you, don’t forget to subscribe to our blog. See you in our next posts!