Which command display all current TCP IP network configuration values for each adapter and refresh DHCP and DNS settings?

The ipconfig command is used to display information about your network configuration and refresh DHCP and DNS Settings. By default, the ipconfig command displays your IP Address, Subnet Mask, and default gateway. But with correct parameters, you can get a lot more information out of it.

Nội dung chính

• Ipconfig /all command
• Ipconfig /release Command
• Ipconfig /renew Command
• Ipconfig /DisplayDNS
• Flush DNS Command
• Ipconfig on Linux
• View DNS servers on Linux
• Renew IP Address on Linux
• Wrapping Up
• What Windows command can you utilize to display all TCP IP configuration information for each network adapter installed?
• What command can you use to display TCP IP configuration information?
• What is the ipconfig command used for?
• How do I find my TCP IP?

In this article, I will explain the ipconfig command and the different options that you can use.

So let’s first start with something simple, how to use the ipconfig command.

1. Press Windows key + X or Right Click on the start menu

   To use the IP config command we will need to open Command Prompt or PowerShell

2. Select Windows PowerShell or Command Prompt
   

3. Type ipconfig and press enter

   This will show you the basic network information from your network adapters

As you can see in the screenshot above, the command will return information about each network adapter on your computer. In this case, we have an ethernet adapter (for our wired network connection) and a wireless network adapter.

If you are using a VPN client, then this will also be listed as a network adapter.

Ipconfig /all command

Without the use of any parameter, the command shows only the basic network information. But information about the DNS and DHCP servers isn’t displayed by default. To show all the information about your network adapter, you will need to use the /all parameter.

This will return the following information for each network adapter in your device:

The ipconfig /all command is often used to troubleshoot network connection problems. But which information is important and do you need to look at?

If we take a closer look at the results of ipconfig /all then we can indicate 4 items that are important to look at:

1. IPv4 Address – This is your IP Address
2. Default Gateway – The router or modem to which you network package are sent
3. DNS servers – Used to translate domain names to IP Addresses
4. DHCP Enabled – Needs to be Yes in most cases. No means that you have manually enter an IP Address

Ipconfig /release Command

The ipconfig command doesn’t only show your information about your network settings, but it can also be used to reset or refresh your network settings. When you have DHCP enabled on your network card, you can request a new IP Address from the DHCP server.

Learn more about DHCP

If you want to know more about how DHCP works, then make sure you read this article.

The first step to do this is to release the current IP Address. This means that we will inform the DHCP server that we don’t want to use the assigned IP Address any longer.

By default, the command will release the IP Addresses for all network adapters. You can also specify a single network adapter. To do this you will need to enter the name of the adapter that you find here in the results of ipconfig:

For example, if you only want to release the IP Address of your wireless network adapter, you can type:

This will release the IP Address of all adapters where the name starts with “Wireless”.

Ipconfig /renew Command

After you have released the IP Address you will need to request a new one from the DHCP Server. We can do this with the Ipconfig /renew command:

When the renew was successful you will see the same output as the ipconfig command, an overview of your new IP Address, subnet mask, and gateway.

Again, we can specify a single network adapter by specifying the name of the adapter.

Ipconfig /DisplayDNS

Your computer keeps a local cache of all DNS records that it’s has visited. This cache is used to quickly translate the domain names to the correct IP Address. This way your computer doesn’t have to contact the DNS server every time when you visit Google.com for example.

To view the content of the DNS cache you can use the command ipconfig /displaydns.

This will show every DNS record in your DNS cache:

You often don’t need to go through the records, but let me explain a little bit about what we are seeing here:

Flush DNS Command

Sometimes your DNS Cache contains outdated records, which can result in DNS-related errors (unable to reach websites for example). You can solve this often by using the flush dns command:

The command ipconfig /flushdns clears out your DNS Cache. You can do this without any risk, your computer will simply request new, and up-to-date DNS records from the DNS servers.

Ipconfig on Linux

The equivalent for ipconfig on Linux is the ifconfig command. Ifconfig will show you the basic network information of your adapters in Linux.

View DNS servers on Linux

The ifconfig command doesn’t show the DNS servers that are used. To view the DNS servers on Linux we need to open a configuration file.

This will give you an idea of which DNS servers are used on your Linux machine.

Renew IP Address on Linux

On Linux, you can’t use the ifconfig command to renew or release your IP Address just like with Ipconfig. To renew your IP Address on Linux you will need to use the following command:

Wrapping Up

The ipconfig command is the most used command on Windows to troubleshoot network issues. It gives you information about your current network configuration and it has the ability to renew your Ip addresses and DNS cache.

If you have any questions, just drop a comment below.

What Windows command can you utilize to display all TCP IP configuration information for each network adapter installed?

Ipconfig. Displays all current TCP/IP network configuration values and refreshes Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS) settings. Used without parameters, ipconfig displays the IP address, subnet mask, and default gateway for all adapters.

What command can you use to display TCP IP configuration information?

Internet protocol configuration (ipconfig) is one of the most valuable tools used to check and troubleshoot basic TCP/IP settings and this command displays all the IP configuration details of the windows machine.

What is the ipconfig command used for?

Used without parameters, ipconfig displays Internet Protocol version 4 (IPv4) and IPv6 addresses, subnet mask, and default gateway for all adapters.

How do I find my TCP IP?

Click Start on the task bar, type cmd into the search box, and then press Enter to open prompt window. Type ipconfig /all at the prompt window, then press Enter. It will show the IP address, Subnet Mask, Default Gateway and so on.

Which command is used to check TCP IP settings?

What is the ipconfig command used for?

Which command will display your current network configuration?

How do you find out your current TCP IP configuration?