使用WMI EnableStatic方法的問題

Question

我正在嘗試創建一個將動態DHCP提供的IPv4地址，網關和dns設置轉換爲靜態配置的工具。我試圖用WMI來解決這個難題，但我有一個我無法弄清楚的問題。

應用程序完成後，配置了DNS和網關，但EnableStatic方法（設置IP地址和子網）沒有成功，這意味着即使缺省情況下仍從DHCP接收IP（使用灰色字段）網關已設置。我該如何解決？

EnableStatic的ReturnValue值爲70（無效的IP地址）。奇怪的是，輸入參數與我在2秒前從NIC中提取的參數相同。

下面是代碼（除GUI），http://pastebin.com/AE3dGhUz：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 
using System.Management; 

namespace Static_NIC_Settings_Creator 
{ 
    public partial class Form1 : Form 
    { 
     private ManagementObjectCollection queryCollection; 
     private string[] networkInterfaces; 
     private int currentNIC; 
     private string[] ipAddress; 
     private string[] subnetMask; 
     private string[] defaultIPGateway; 
     private string[] dnsServerSearchOrder; 

     public Form1() 
     { 
      InitializeComponent(); 
      getNICs(); 
     } 

     private void convertButton_Click(object sender, EventArgs e) 
     { 
      if (networkInterfaces.Count() > 0) 
      { 
       //Get current NIC settings 
       if (!getNICSettings()) 
       { 
        MessageBox.Show("Retrieving current NIC settings failed.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
        return; 
       } 
       //Convert to static NIC settings 
       if (!setNICStatic()) 
       { 
        MessageBox.Show("Setting NIC settings to static failed.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
        return; 
       } 
      } 
     } 

     private void nicSelecter_SelectedIndexChanged(object sender, EventArgs e) 
     { 
      currentNIC = nicSelecter.SelectedIndex; 
     } 

     private void getNICs() 
     { 
      //Get NICS 
      ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 'TRUE'"); 
      queryCollection = query.Get(); 
      //Make nic string array 
      int i = queryCollection.Count; 
      networkInterfaces = new string[i]; 
      //Fill nic string array 
      i = 0; 
      foreach (ManagementObject mo in queryCollection) 
      { 
       networkInterfaces[i] = (String)mo["Description"]; 
       i++; 
      } 
      //Fill dropbox with arraylist-data 
      nicSelecter.DataSource = networkInterfaces; 
     } 

     private Boolean getNICSettings() 
     { 
      //Get selected NIC 
      int i = 0; 
      foreach (ManagementObject mo in queryCollection) 
      { 
       //Get settings for specific NIC 
       if (i == currentNIC) 
       { 
        try 
        { 
         ipAddress = (String[])mo["IPAddress"]; 
         subnetMask = (String[])mo["IPSubnet"]; 
         defaultIPGateway = (String[])mo["DefaultIPGateway"]; 
         dnsServerSearchOrder = (String[])mo["DNSServerSearchOrder"]; 
         return true; 
        } 
        catch (Exception e) 
        { 
         System.Windows.Forms.MessageBox.Show(e.ToString(), "Critical: Unhandled error"); 
         return false; 
        } 
       } 
       i++; 
      } 
      return false; 
     } 

     private Boolean setNICStatic() 
     { 
      //Get selected NIC 
      int i = 0; 
      foreach (ManagementObject mo in queryCollection) 
      { 
       //Get settings for specific NIC 
       if (i == currentNIC) 
       { 
        try 
        { 
         //Set static IP and subnet mask 
         ManagementBaseObject setIP; 
         ManagementBaseObject newIP = mo.GetMethodParameters("EnableStatic"); 
         newIP["IPAddress"] = ipAddress; 
         newIP["SubnetMask"] = subnetMask; 
         setIP = mo.InvokeMethod("EnableStatic", newIP, null); 
         //Set default gateway 
         ManagementBaseObject setGateway; 
         ManagementBaseObject newGateway = mo.GetMethodParameters("SetGateways"); 
         newGateway["DefaultIPGateway"] = defaultIPGateway; 
         newGateway["GatewayCostMetric"] = new int[] { 1 }; 
         setGateway = mo.InvokeMethod("SetGateways", newGateway, null); 
         //Set dns servers 
         ManagementBaseObject setDNS; 
         ManagementBaseObject newDNS = mo.GetMethodParameters("SetDNSServerSearchOrder"); 
         newDNS["DNSServerSearchOrder"] = dnsServerSearchOrder; 
         setDNS = mo.InvokeMethod("SetDNSServerSearchOrder", newDNS, null); 

         System.Windows.Forms.MessageBox.Show("Setting NIC settings returned: " + setDNS); 
         return true; 
        } 
        catch (Exception e) 
        { 
         System.Windows.Forms.MessageBox.Show(e.ToString(), "Critical: Unhandled error"); 
         return false; 
        } 
       } 
       i++; 
      } 
      //No NICs 
      return false; 
     } 
    } //End class 
} 

任何想法？

Answer 1

難道你也在輸入IPv6地址嗎？只是玩PowerShell似乎不喜歡它們。也許你可以發佈在調試時輸入的實際值，這會有很大的幫助。另外也許嘗試靜態輸入一些值，如：

new string[]{"192.168.0.1"}, new string[] {"255.255.255.255"} 

而且除非你真的需要C＃和GUI，你可能要考慮使用PowerShell的（要求它正在安裝過程中）的WMI是真的要簡單得多在那裏操作（可惜你仍然有這種學習曲線）。

這僅僅是如何使用PowerShell的一個例子，你可以在最起碼使用它的一些測試：

Get-WmiObject Win32_NetworkAdapterConfiguration 

然後讓你的適配器的索引，然後運行，但取代你的索引號：

$obj = Get-WmiObject Win32_NetworkAdapterConfiguration | where {$_.Index -eq 1} 
$obj.EnableStatic("192.168.0.1", "255.255.255.0") 

要獲得方法參數只需運行：

$obj.EnableStatic 

它將返回：

MemberType   : Method 
OverloadDefinitions : {System.Management.ManagementBaseObject EnableStatic(System.String[]IPAddress, System.String[] SubnetMask)} 
TypeNameOfValue  : System.Management.Automation.PSMethod 
Value    : System.Management.ManagementBaseObject EnableStatic(System.String[]IPAddress, System.String[] SubnetMask) 
Name    : EnableStatic 
IsInstance   : True