Change IP address and HostName of NT machine

Environment: NT4 SP5

How to set local machine IP addresses from your program ?

Follow this steps

1. Open registry on the HKEY_LOCAL_MACHINE

2. Find the subKey = SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards\netcard# netcard# usually is "1" but you can control any subkey and find specific netwrok Adapters Refer to "MSDN Registry Entries for Network Adapter Cards"

3. Get data for the value "ServiceName"

4. Find the subKey = SYSTEM\CurrentControlSet\Services\"ServiceName"\Parameters\TcpIp"

5. Set data for the value "IpAddress" to change IP address

6. Set data for the value "SubnetMask" to change subnet mask

7. Set data for the value "DefaultGateway" to change default gateway

8. Reboot your PC.

How to set local machine HostName from your program ?

Follow this steps:

1. Open registry on the HKEY_LOCAL_MACHINE

2. Find the subKey = SYSTEM\CurrentControlSet\Services\TcpIp\Parameters

3. Set data for the value "HostName"

4. Find the subKey = SYSTEM\CurrentControlSet\Control\ComputerName\ComputerName

5. Set data for the value "ComputerName"

6. Reboot your PC and HostName will be set.


WARNING: Modify registry incorrect can cause serious, system-wide problems . Use this at your own risk



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  • i need a help to capture the packets

    Posted by josephashvin on 03/28/2006 11:24pm

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  • Re: Win2000 ...

    Posted by Legacy on 11/07/2001 12:00am

    Originally posted by: fbi

    Hi,
    there is an example in MS Platform SDK named "ipchange".
    Maybe this give you a hint.

    CU

    Reply
  • Win2000, How to .. without Reboot?

    Posted by Legacy on 04/16/2001 12:00am

    Originally posted by: cloudree


    Windows 2000, the ip could be changed in Control Panel without reboot.

    but, I find that only changing the registry can't change the IP.

    Is there any other stuff?

    Reply
  • Can I use this under Win95?

    Posted by Legacy on 08/20/1999 12:00am

    Originally posted by: Anonymus

    Can I use this under W95? Or is this only for NT?

    Reply
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