Which of the Windows command prompt commands allows to display IP addresses subnet mask and default gateway for all adapters?

(Internet Protocol CONFIGuration) A command line utility that is used to display and manage the IP address assigned to the machine. In Windows, typing ipconfig without any parameters displays the computer's currently assigned IP, subnet mask and default gateway addresses.

Inhaltsverzeichnis Show

What is ipconfig and how do you run the command?
What is ipconfig used for?
Network administration and troubleshooting
Obtaining and configuring IP addresses
DHCP configuration
Clearing the DNS cache
Overview of ipconfig options
Practical examples illustrating how to use the ipconfig command
What Windows command that will display the IP address subnet mask and default gateway?
Which command in the Windows command prompt can be used to display the IP address for your computer?
Which command in cmd is used to display the host network settings?
What does ipconfig do in command prompt?

In the Mac, ipconfig getifaddr en0 and ipconfig getifaddr en1 display the Wi-Fi and Ethernet IP addresses respectively (getifaddr stands for Get Interface Address). See IFCONFIG, NSLOOKUP and netstat.

 IPCONFIG COMMANDS IN WINDOWS

 Reporting      Displays

 no switch      IP, subnet mask & default
                 gateway addresses

 /all           the above +
                 hostname, MAC address,
                 DNS server addresses, etc.

 /displaydns    contents of DNS cache

 /showclassid   all DHCP class IDs
                 for adapter


 Management     Action

 /release       release IP address

 /renew         renew IP address

 /flushdns      purge DNS cache

 /registerdns   refresh leases & 
                 reregister DNS

 /setclassid    update DHCP class ID

Ipconfig is one of the better-known command-line utilities available through Windows, since it is highly useful for configuring and analysing networks. Administrators mainly use this command because it allows them to perform their tasks quickly and directly without having to sift through convoluted nested menus in the Windows user interface. Even everyday average users can use this tool to solve Internet connection and network problems. In the following article, we will take a look at the ipconfig command which is useful for network setup, configuration, and administration.

Contents

What is ipconfig and how do you run the command?
What is ipconfig used for?
1. Network administration and troubleshooting
2. Obtaining and configuring IP addresses
3. DHCP configuration
4. Clearing the DNS cache
Overview of ipconfig options
Practical examples illustrating how to use the ipconfig command

What is ipconfig and how do you run the command?

Ipconfig is a command-line utility that was introduced in Windows NT. It is specialised in network configuration, administration, and analysis. This command is used to obtain useful network-specific information, and it can also perform concrete actions and make changes to the network configuration. Ipconfig is accessed and run through the Windows operating system command shell (cmd.exe). There are a variety of options that can be added to this command to extend its functionality and perform specific tasks on the network.

Tip

Windows also offers a variety of other CMD commands. These can be used to greatly speed up your work with the Microsoft operating system.

What is ipconfig used for?

Ipconfig is particularly useful for obtaining a quick, concise overview of important configuration settings in the TCP/IP network and covers all existing network adapters and interfaces (e.g. LAN, WLAN, Bluetooth, ISDN and VPN adapters).

Network administration and troubleshooting

Being able to find assigned IP addresses can be very useful for local network administration and troubleshooting. The ipconfig command can display both IPv4 and IPv6 addresses. IPv6 is not yet as relevant as its predecessorIPv4, but it will become increasingly important in the future when assigning addresses in networks. IPv6 addresses are already being used more in the Internet of Things (IoT, smart-home infrastructures).

Obtaining and configuring IP addresses

The IP address for the default gateway used to surf the Internet can also be obtained using the ipconfig command (for home users, this is usually the address of their DSL router). In addition, this command can display the address information for the subnet mask and default gateway for all network adapters. You can even use it to find out whether a WINS proxy (name resolution proxy with WINS) or IP routing (a PC can be configured to forward IP data packets to other networks) has been enabled.

DHCP configuration

Nowadays, anyone setting up a network will generally use the Dynamic Host Configuration Protocol (DHCP) to assign IP addresses. Connecting devices are therefore integrated into the home network without any user input through the automated assignment of IP addresses. If you encounter any problems when using this type of dynamic network configuration or if you want to manually modify the address assignment for other reasons, ipconfig can help.

You can manage and modify DHCP routines with ipconfig. For example, you can release and renew an IP address if it was assigned incorrectly by the DHCP server during the automated assignment process or if it is not what the user intended. You can also find information about DHCP leases and therefore about when a DHCP address was assigned and how long it will be valid. IP addresses are not permanently assigned by DHCP; they are only valid for a specific period of time. Servers and clients can terminate, modify, or renew this assignment at any time.

Clearing the DNS cache

The DNS cache speeds up the retrieval of web pages by storing frequently needed data in a local temporary memory for faster access. If the files stored there for speeding up name resolution are corrupt, this can lead to error messages and problems accessing websites (e.g. HTTP 400 error). Caches also pose a security risk since hackers can extract important information from them and use it, for example, to wreak havoc with online banking through DNS spoofing. Using ipconfig, you can clear the DNS cache and therefore eliminate problems and security risks.

Ipconfig can also provide information about the DNS server that is responsible for your computer. There are even more potential applications for the ipconfig command which you can find in the overview table below.

Overview of ipconfig options

The basic ipconfig command will list important information about the network. However, this is by no means the full extent of the tool’s capabilities. By adding options to the ipconfig command, it becomes a versatile tool for network administration and configuration. In the following table, you will find a list of the basic options for the ipconfig command as well as explanations about how they work and the function of important parameters:

/?	Displays ipconfig help
/all	Displays all configuration informationFor example, it displays the relevant DNS server, IP addresses for all controllers if there are multiple network cards, the default gateway, and the subnet mask
/allcompartments	Displays information about all compartments
/release	Releases the IP addressIt is possible to indicate a specific adapter (if there are multiple network adapters); the subsequent command /renew then assigns a new IP after release
/release6	Releases the IPv6 address(es) Specifically addresses the DHCPv6 server and releases IPv6 addresses
/renew	Renews the IP addressIt is possible to indicate a specific adapter (if there are multiple network adapters)
/renew6	Renews the IPv6 address(es)Specifically addresses the DHCPv6 server and modifies the DHCPv6 configuration
/flushdns	Clears the DNS resolution cacheRecommended for when the content of a cache has been corrupted and can resolve problems, increase security, and speed up web browsing
/registerdns	Renews all DHCP leases and DNS name registrationRenews the DNS server registration; resolves dynamic update problems between a client and the DNS server; this parameter bypasses the need to reboot the client’s computer; renewing the settings can also resolve connection problems between the computer and the ISP
/displaydns	Displays the content from the DNS resolution cache
/showclassid	Displays all the DHCP class IDs for an adapter DHCP class IDs enable more precise management of communication between a client and a DHCP server. These are particularly important for professional network configuration, such as for implementing specific user classes or for assigning special DHCP options to a group of clients. Often, the aim here is to increase network security
/setclassid	Modifies the DHCP class IDDHCP class IDs enable more precise management of internal network communication. These are particularly important for professional network configuration, such as for implementing specific user classes or for integrating security mechanisms into communication between a client and the DHCP server

Practical examples illustrating how to use the ipconfig command

Using ipconfig is not particularly complicated. Before entering the command, you have to access the Windows command prompt terminal (cmd.exe) via the Windows 10 Run dialogue box.

Use the keyboard shortcut ‘Windows key + R’.
Enter ‘cmd’ into the input field (1).
Click OK (2).

Launching the command line to enter the ipconfig command.

Then, enter the command ‘ipconfig’ into the command line and press Enter. For a broader range of uses, you can add parameters or options to the command. For example, you can add the option ‘/?’ to the command to display Help.

For each CMD command and its use with additional options, there is a template that must be followed on how to write it. This is called the syntax. The following is the basic structure of the template for ipconfig:

ipconfig [/allcompartments] [/all] [/renew [<adapter>]] [/release [<adapter>]] [/renew6[<adapter>]] [/release6 [<adapter>]] [/flushdns] [/displaydns] [/registerdns] [/showclassid <adapter>] [/setclassid <adapter> [<classid>]]</classid></adapter></adapter></adapter></adapter></adapter></adapter>

If you want to access an overview of the network configuration, the syntax for the command is quite short. After accessing the command line terminal via the Run dialogue box, you will enter the following at the end of the command line which will initially display the current active user account (the account is named ‘Peter’ in the following examples):

When you press Enter, it will display a list with the requested network configuration information.

After entering ipconfig /all, the command prompt terminal will list all the network configuration information.

If you want to clear the DNS cache, this will also only require a short command which you can run directly by pressing Enter:

Entering ipconfig /flushdns will clear the DNS cache. The command line will confirm that the action has been performed.

You can also use the command with placeholders (asterisks: *) for installed network adapters. For example, if you enter ‘local*’, all adapters whose names contain the string ‘local’ anywhere in them will be included when an ipconfig command is run. Windows often uses ‘local’ for installed wireless LAN adapters, which are assigned consecutive numbers at the end of their name (e.g., Local Area Connection 1, Local Area Connection 2, etc.). Now, let’s say you want to renew the IP address for a specific Wi-Fi adapter (e.g. the WLAN adapter named ‘Local Area Connection 2’). To do so, you would enter the following command:

ipconfig /renew "Local Area Connection 2"

Always use quotation marks when using longer phrases in the syntax (i.e. multiple words with spaces between them). Otherwise, the ipconfig command will not work.

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What Windows command that will display the IP address subnet mask and default gateway?

In the Command Prompt window, type IPCONFIG and then press the ENTER key. The Command Prompt window will now display the computer's current IP address and additional Internet configuration information for any wired or wireless port connection.

Which command in the Windows command prompt can be used to display the IP address for your computer?

First, click on your Start Menu and type cmd in the search box and press enter. A black and white window will open where you will type ipconfig /all and press enter. There is a space between the command ipconfig and the switch of /all. Your ip address will be the IPv4 address.

Which command in cmd is used to display the host network settings?

The ipconfig command displays the basic IP addressing information for each network interface on the Windows system.

What does ipconfig do in command prompt?

(Internet Protocol CONFIGuration) A command line utility that is used to display and manage the IP address assigned to the machine. In Windows, typing ipconfig without any parameters displays the computer's currently assigned IP, subnet mask and default gateway addresses.