how to change ip address in windows server 2012

Change IPv4 Address in Windows Server 2012

For servers with Windows operating system and administration rights

If you assign a different IP address to your server, you must adjust its network configuration. To adjust the network configuration of your server, proceed as follows:

Open the Control Panel .

Click Network and Internet > Network and Sharing Center > Change Adapter Settings .

Right-click the network adapter and select Properties .

Double-click Internet Protocol Version 4 (TCP / IPv4) .

Activate the Use the following IP address option. Enter your new or changed IP address, as well as the subnet mask, default gateway and DNS servers from the table below. Confirm the changes with OK .

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(1) Add Local Users
(2) Set Admin User Name
(3) Set Computer Name
(4) Set Static IP address
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Install OpenSSH
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(01) Add Local User
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(03) Set Computer Name
(04) Set Static IP Address
(05) Windows Update
(06) Allow ICMP Echo Reply

How to Change IP Settings in Windows Server 2012 R2

Step 1: Right click a computer icon located on a task-bar and scroll to Open Network and Sharing Center and click it .

Step 2: Click Ethernet

Step 3: Click on Network Properties

Step 4: Provide IP address, subnet mask, and preferred DNS server and click OK to finish changing IP settings on your local machine

How To: Set a Static IP Address in Windows Server 2012 R2

how to change ip address in windows server 2012

When installing servers in your network, it is usually recommended that you configure them with a static IP address. Although this isn’t an incredibly difficult task to complete, I thought it would be helpful to have a step by step for someone who is new to networking and may not have experience setting up servers.

Configuring a Static IP Address

1. Log into the server using Administrative Credentials

2. Click on Start and in the Start Search Box , type ncpa .cpl and hit Enter . Alternatively, you can access the network connections window by clicking Start > Control Panel > Network and Internet > Network and Sharing Center > Change Adapter Settings

3. Right Click on the network adapter you wish you configure and choose Properties

4. In the Properties Window , locate and select Internet Protocol Version 4 (TCP/IPv4) then click Properties

5. Enter desired IP Address , Subnet Mask, Default Gateway and DNS Servers

Note: If you don’t know how to find an open IP Address in your network, use a tool like Netscan or Angry IP scanner to scan your network and select an open (one that does not appear in the list).

6. Click OK to close the properties window and then OK again to close the Ethernet Properties window.

Your network adapter will now be configured with that address that you specified.

Note: If you were connected through remote desktop to the server or computer using the old IP Address, you will need to reconnect using the assigned IP Address.

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How to change the IP address of a network adapter

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This article provides some information about how to change the IP address of a network adapter.

Applies to: Windows Server 2012 R2 Original KB number: 323444

This article describes how to change the Internet Protocol (IP) address that is assigned to a network adapter. An IP address may be assigned automatically if your network has a Dynamic Host Configuration Protocol (DHCP) server, or you can specify an IP address.

How to change the IP address assigned to a Network Adapter

Log on to the computer by using the Administrator account.
Click Start, point to Control Panel, and click Network Connections.
Right-click the local area connection that you want to modify and then click Properties .
In the This connection uses the following items box, click Internet Protocol (TCP/IP), and then click Properties. The Internet Protocol (TCP/IP) Properties dialog box appears.
Continue with the steps in one of the following two sections, depending on your circumstances.

How to automatically obtain an IP Address

Follow these steps to configure the computer to obtain an IP address from a DHCP server. You must have a DHCP server.

Click Obtain an IP address automatically .

Click Obtain DNS server address automatically if you do not want to specify the IP address of the Domain Name System (DNS) server.

Click OK. In the Local Area Connection Properties dialog box, click Close.
In the Local Area Connection Status dialog box, click Close.

Click Start, and then click Run.

In the Open box, type cmd, and then click OK.

At the command prompt, type ipconfig /release, and then press ENTER.

Type ipconfig /renew, and then press ENTER.

The network adapter is assigned an IP address by the DHCP server, and a message similar to the following appears:

Type exit, and then press ENTER to quit the command prompt.

How to Specify an IP Address

To assign an IP address to the network adapter, follow these steps:

Click Use the following IP address if you want to specify the IP address for the network adapter.
In the IP address box, type the IP address that you want to assign to this network adapter. This IP address must be a unique address in the range of addresses that are available for your network. Contact the network administrator to obtain a list of valid IP addresses for your network.
In the Subnet mask box, type the subnet mask for your network.
In the Default gateway box, type the IP address of the computer or device on your network that connects your network to another network or to the Internet.
In the Preferred DNS server box, type the IP address of the computer that resolves host names to IP addresses.
In the Alternate DNS server box, type the IP address of the DNS computer that you want to use if the preferred DNS server becomes unavailable.

Troubleshooting

There is an IP address conflict: If you try to assign an IP address that is already in use, you receive the following error message:

The static IP address that was just configured is already in use on the network. Please reconfigure a different IP address.

In this case, assign an unused IP address to the network adapter.

Your computer cannot connect to other computers on the network: If you assign an incorrect subnet mask address to the network adapter, the computer is effectively located on a different network. You cannot connect to other computers on the network.

Your computer cannot connect to other computers by using host names: If you assign an incorrect DNS server IP address, or if you do not use a DNS server, you cannot connect to computers by using their host names. It prevents you from browsing the Internet. You can connect to other computers by using their IP addresses.

To work around this issue in a local network, add host-name-to-IP-address mappings in a Hosts file.

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How to configure network on Windows Server 2012

For the correct operation of the network on Windows, regardless of whether the connection redundancy option is ordered for a server or not, it is necessary to set up link teaming (aggregate two physical interfaces into a logical one).

Servers with link aggregation have five network ports. Two ports are connected to a pair of switches in the private network, two ports are connected to a pair of switches in the public network, and one port is connected to the out-of-band (OOB) management network.

Link teaming (aka link aggregation) is configured for each pair of public and private ports. We use the LACP protocol for link aggregation. In line with our interface naming convention, "aggi" is the name of the private network aggregation interface, and "agge" is the name of the public network aggregation interface.

Setting up link aggregation

To set up teaming separately for the private network and for the public network, open Server Manager, go to the tab "Local Server" and in the "Properties" window next to the line "NIC Teaming" click "Disabled".

In the appearing window, in the "Teams" section, select "New Team" from the drop-down "Tasks" menu.

Let's set up a team for the private network first.

Set the name of a team to "aggi" .

Select "int1" and "int2" network adapters as member adapters.

Select "LACP" in the "Teaming mode" drop-down list.

Leave "Load balancing mode" to "Dynamic" as it is.

Click "OK".

The process of setting up the public network is pretty the same, except for "Team name" which is "agge", and for "Member adapters" which are "ext1" and "ext2".

Configuring IPv4

After both teamed interfaces are created, IPv4 settings for each of them must be changed. You will need to know the private IP address of your server, the public IP address and gateways addresses which are available on the server's Details page in the Customer Portal:

To make changes to IPv4 settings, open "Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings" window. Right-click on the interface named "aggi" and select "Properties" to view network interface settings.

Select "Internet Protocol Version 4 (TCP / IPv4)" in the list of protocols in the appearing window and click "Properties".

Enter the following values:

IP address: [Private IP address of your server]

Subnet mask: 255.255.255.248

Default gateway: leave blank

Preferred DNS server: 192.168.8.88

Alternate DNS server: 192.168.8.8

After the data has been entered, click "OK".

Do the same procedure for the public network interface ("agge") using the following values:

IP address: [Public IP address of your server]

Default gateway: [Gateway IP address for the public network]

Preferred DNS server: Leave blank

Alternate DNS server: Leave blank

Adding static routes

Next, for the correct operation of the network, you need to add static routes. To do this, press Ctrl + Win + R. In the appearing dialogue, type "cmd" and click "OK" to open Command Prompt. Run the following command to find out network interfaces numbers:

In this sample output, you can see that "aggi" index is 5, and "agge" index is 8.

Now you need to run the following commands replacing brackets with actual data:

Using data from examples above, it will be:

You're done!