Question

I am developing a wizard for a machine that is to be used as a backup of other machines. When it replaces an existing machine, it needs to set its IP address, DNS, WINS, and host name to match the machine being replaced.

Is there a library in .net (C#) which allows me to do this programatically?

There are multiple NICs, each which need to be set individually.

EDIT

Thank you TimothyP for your example. It got me moving on the right track and the quick reply was awesome.

Thanks balexandre. Your code is perfect. I was in a rush and had already adapted the example TimothyP linked to, but I would have loved to have had your code sooner.

I’ve also developed a routine using similar techniques for changing the computer name. I’ll post it in the future so subscribe to this questions RSS feed if you want to be informed of the update. I may get it up later today or on Monday after a bit of cleanup.

Answer 1

Just made this in a few minutes:

using System; using System.Management;  namespace WindowsFormsApplication_CS {   class NetworkManagement   {     public void setIP(string ip_address, string subnet_mask)     {       ManagementClass objMC =         new ManagementClass('Win32_NetworkAdapterConfiguration');       ManagementObjectCollection objMOC = objMC.GetInstances();        foreach (ManagementObject objMO in objMOC)       {         if ((bool)objMO['IPEnabled'])         {           ManagementBaseObject setIP;           ManagementBaseObject newIP =             objMO.GetMethodParameters('EnableStatic');            newIP['IPAddress'] = new string[] { ip_address };           newIP['SubnetMask'] = new string[] { subnet_mask };            setIP = objMO.InvokeMethod('EnableStatic', newIP, null);         }       }     }      public void setGateway(string gateway)     {       ManagementClass objMC = new ManagementClass('Win32_NetworkAdapterConfiguration');       ManagementObjectCollection objMOC = objMC.GetInstances();        foreach (ManagementObject objMO in objMOC)       {         if ((bool)objMO['IPEnabled'])         {           ManagementBaseObject setGateway;           ManagementBaseObject newGateway =             objMO.GetMethodParameters('SetGateways');            newGateway['DefaultIPGateway'] = new string[] { gateway };           newGateway['GatewayCostMetric'] = new int[] { 1 };            setGateway = objMO.InvokeMethod('SetGateways', newGateway, null);         }       }     }      public void setDNS(string NIC, string DNS)     {       ManagementClass objMC = new ManagementClass('Win32_NetworkAdapterConfiguration');       ManagementObjectCollection objMOC = objMC.GetInstances();        foreach (ManagementObject objMO in objMOC)       {         if ((bool)objMO['IPEnabled'])         {           // if you are using the System.Net.NetworkInformation.NetworkInterface           // you'll need to change this line to           // if (objMO['Caption'].ToString().Contains(NIC))           // and pass in the Description property instead of the name            if (objMO['Caption'].Equals(NIC))           {             ManagementBaseObject newDNS =               objMO.GetMethodParameters('SetDNSServerSearchOrder');             newDNS['DNSServerSearchOrder'] = DNS.Split(',');             ManagementBaseObject setDNS =               objMO.InvokeMethod('SetDNSServerSearchOrder', newDNS, null);           }         }       }     }      public void setWINS(string NIC, string priWINS, string secWINS)     {       ManagementClass objMC = new ManagementClass('Win32_NetworkAdapterConfiguration');       ManagementObjectCollection objMOC = objMC.GetInstances();        foreach (ManagementObject objMO in objMOC)       {         if ((bool)objMO['IPEnabled'])         {           if (objMO['Caption'].Equals(NIC))           {             ManagementBaseObject setWINS;             ManagementBaseObject wins =             objMO.GetMethodParameters('SetWINSServer');             wins.SetPropertyValue('WINSPrimaryServer', priWINS);             wins.SetPropertyValue('WINSSecondaryServer', secWINS);              setWINS = objMO.InvokeMethod('SetWINSServer', wins, null);           }         }       }     }    } }