How to Find and Change the Subnet Mask in Windows 11
Devices in a subnetwork have IP addresses that begin with the same prefix. The length of this prefix is different for different devices—it depends on the network size, whose length is identified using the subnet mask.
While troubleshooting network issues, you must ensure that the subnet mask is correct. So, we’ll share how to find and change the subnet in Windows 11.
How to Find the Subnet Mask in Windows 11
The easiest way to find the subnet mask in Windows 11 is through theWindows Command Promptor Windows PowerShell. To find it using the Command Prompt, follow the steps below:
The steps to do it using Windows PowerShell are similar to the Command Prompt. To do it,open Windows PowerShell with admin rights, type the ipconfig /all command, and press Enter.
In the result that appears, you can see the subnet mask under the Wireless LAN adapter Wi-Fi section.
How to Change the Subnet Mask in Windows 11
Now that you know how to find the subnet mask on your computer, let’s check out how to change it.
1. Change the Subnet Mask Using the Windows Settings
The settings menu is the central hub of a Windows operating system. It’s a place to configure different settings of your computer and manage the network. it’s possible to also use it to change the subnet mask.
Here’s how to do it:
2. Change the Subnet Mask Using the Control Panel
The Control Panel is the go-to place to configure window settings and make changes to your device. To use it to change the subnet mask, follow the below instructions:
3. Change the Subnet Mask Using Windows PowerShell
Windows PowerShell is also one of the places from where you’re able to change the subnet mask in Windows 11. Here’s how to do it:
For instance, if the ifIndex Number is 3 and the new subnet prefix length you want is 24, then the command will be:
Changing the Subnet Mask in Windows 11
The subnet mask helps to identify the network and the host bit of the IP address. If you want to find and change the subnet mask on your computer, you can do it using either of the above methods.
Meanwhile, you might be interested to know more about subnets and how to calculate them.
Learn all about the mechanics of subnetting, including how individual devices recognize that others are on the same subnet.
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