Change the IP address of the Win 2003 network adapter

This article describes how to change the IP address that has been assigned to the network adapter. If your network has a "Dynamic Host Configuration Protocol" (DHCP) server, the IP address will be assigned automatically, otherwise you can specify an IP address.

How to change the IP address assigned to the network adapter

Log in to the computer with an administrator account.

Click Start, point to Control Panel, point to Network Connections, and then click the local connection you want to modify.

In the Connection Status dialog box, click Properties.

Right-click on the required local connection and click Properties. The “Local Network Connection Properties” dialog box will appear on the screen.

In the <;This connection uses the following items” box, click Internet Protocol (TCP/IP), and then click Properties. The “Internet Protocol (TCP/IP) Properties & rdquo; dialog box will appear on the screen.

Continue with the steps in one of the following two sections (selected according to your environment).

How to Obtain an IP Address Automatically

Follow these steps to configure your computer to obtain an IP address from a DHCP server. Note that you must have a DHCP server.

Click “Automatically Obtain IP Address”.

If you do not want to specify the IP address of the Domain Name System (DNS) server, click “Automatically Obtain DNS Server Address”.

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

In the "Local Area Connection Status" dialog box, click Close.

Click Start, then click Run.

In the Open box, type cmd and click OK.
At the command prompt, type ipconfig /release and press ENTER.

Type ipconfig/renew and press ENTER. The DHCP server will assign an IP address to the network adapter, and you will see a message like this:

Windows.NETIPConfiguration EthernetadapterLocalAreaConnection: Connection-specificDNSSuffix.:dns.microsoft.com IPAddress.... ........:192.168.0.201 SubnetMask...........:255.255.255.0 DefaultGateway.........:192.168.0.1

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

How to specify an IP address

To assign an IP address to a network adapter, do the following: xx:

If you want to assign an IP address to the network adapter, click &ldquo ; Use the following IP address”.

In the "IP address" box, type the IP address you want to assign to this network adapter. This IP address must be unique within the range of available addresses for your network. Please contact your network administrator for 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 the Internet.

In the "Priority DNS Server" box, type the IP address of the computer that resolves the hostname to an IP address.

In the "Alternate DNS Server" box, type the IP address of the DNS machine you want to use when the preferred DNS server is unavailable.

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

In the "Local Area Connection Status" dialog box, click Close.

Troubleshooting

IP address conflicts: If you try to assign an occupied IP address, you will see the following error message:

ThestaticIPaddressthatwasjustconfiguredisalreadyinuseonthe network.PleasereconfigureadifferentIPaddress. >

Your computer cannot connect to other computers on the network: If you assign an incorrect subnet mask address to your network adapter, the computer will actually be on another network, so you cannot connect to Other computers on the network.

Your computer cannot connect to other computers using the host name: if you have assigned an incorrect DNS server IP address, or if you are not using a DNS server, you cannot connect to these computers using the host name of another computer. This way you will not be able to browse the Internet. You can connect to them using the IP addresses of other computers.

To work around this issue on your local network, add a mapping of hostnames to IP addresses in the "host" file.