NetworkInterface.GetIPProperties Metoda

Definicja

Przestrzeń nazw:

System.Net.NetworkInformation

Zestaw:

System.Net.NetworkInformation.dll

Źródło:

NetworkInterface.cs

Zwraca obiekt opisujący konfigurację tego interfejsu sieciowego.

public:
 virtual System::Net::NetworkInformation::IPInterfaceProperties ^ GetIPProperties();

public virtual System.Net.NetworkInformation.IPInterfaceProperties GetIPProperties ();

abstract member GetIPProperties : unit -> System.Net.NetworkInformation.IPInterfaceProperties
override this.GetIPProperties : unit -> System.Net.NetworkInformation.IPInterfaceProperties

Public Overridable Function GetIPProperties () As IPInterfaceProperties

Zwraca

IPInterfaceProperties

Obiekt IPInterfaceProperties opisujący ten interfejs sieciowy.

Przykłady

Poniższy przykład kodu przedstawia informacje dotyczące kart sieciowych komputera lokalnego, które obsługują protokół IPv4.

void DisplayIPv4NetworkInterfaces()
{
   array<NetworkInterface^>^nics = NetworkInterface::GetAllNetworkInterfaces();
   IPGlobalProperties ^ properties = IPGlobalProperties::GetIPGlobalProperties();
   Console::WriteLine( "IPv4 interface information for {0}.{1}", properties->HostName, properties->DomainName );
   System::Collections::IEnumerator^ myEnum23 = nics->GetEnumerator();
   while ( myEnum23->MoveNext() )
   {
      NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum23->Current);

      // Only display informatin for interfaces that support IPv4.
      if ( !adapter->Supports( NetworkInterfaceComponent::IPv4 ) )
      {
         continue;
      }
      Console::WriteLine();
      Console::WriteLine( adapter->Description );

      // Underline the description.
      Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) );
      IPInterfaceProperties ^ adapterProperties = adapter->GetIPProperties();

      // Try to get the IPv4 interface properties.
      IPv4InterfaceProperties ^ p = adapterProperties->GetIPv4Properties();
      if ( !p )
      {
         Console::WriteLine( "No IPv4 information is available for this interface." );
         continue;
      }

      // Display the IPv4 specific data.
      Console::WriteLine( "  Index ............................. : {0}", 
         p->Index );
      Console::WriteLine( "  MTU ............................... : {0}", 
         p->Mtu );
      Console::WriteLine( "  APIPA active....................... : {0}", 
         p->IsAutomaticPrivateAddressingActive );
      Console::WriteLine( "  APIPA enabled...................... : {0}", 
         p->IsAutomaticPrivateAddressingEnabled );
      Console::WriteLine( "  Forwarding enabled................. : {0}", 
         p->IsForwardingEnabled );
      Console::WriteLine( "  Uses WINS ......................... : {0}", 
         p->UsesWins );
   }
}

public static void DisplayIPv4NetworkInterfaces()
{
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    Console.WriteLine("IPv4 interface information for {0}.{1}",
       properties.HostName, properties.DomainName);
    Console.WriteLine();

    foreach (NetworkInterface adapter in nics)
    {
        // Only display informatin for interfaces that support IPv4.
        if (!adapter.Supports(NetworkInterfaceComponent.IPv4))
        {
            continue;
        }
        Console.WriteLine(adapter.Description);
        // Underline the description.
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,'='));
        IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
        // Try to get the IPv4 interface properties.
        IPv4InterfaceProperties p = adapterProperties.GetIPv4Properties();

        if (p == null)
        {
            Console.WriteLine("No IPv4 information is available for this interface.");
            Console.WriteLine();
            continue;
        }
        // Display the IPv4 specific data.
        Console.WriteLine("  Index ............................. : {0}", p.Index);
        Console.WriteLine("  MTU ............................... : {0}", p.Mtu);
        Console.WriteLine("  APIPA active....................... : {0}",
            p.IsAutomaticPrivateAddressingActive);
        Console.WriteLine("  APIPA enabled...................... : {0}",
            p.IsAutomaticPrivateAddressingEnabled);
        Console.WriteLine("  Forwarding enabled................. : {0}",
            p.IsForwardingEnabled);
        Console.WriteLine("  Uses WINS ......................... : {0}",
            p.UsesWins);
        Console.WriteLine();
    }
}

Public Shared Sub DisplayIPv4NetworkInterfaces() 
    Dim nics As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
    Dim properties As IPGlobalProperties = IPGlobalProperties.GetIPGlobalProperties()
    Console.WriteLine("IPv4 interface information for {0}.{1}", properties.HostName, properties.DomainName)
    
    Dim adapter As NetworkInterface
    For Each adapter In  nics
        ' Only display informatin for interfaces that support IPv4.
        If adapter.Supports(NetworkInterfaceComponent.IPv4) = False Then
            GoTo ContinueForEach1
        End If
        Console.WriteLine()
        Console.WriteLine(adapter.Description)
        ' Underline the description.
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length, "="c))
        Dim adapterProperties As IPInterfaceProperties = adapter.GetIPProperties()
        ' Try to get the IPv4 interface properties.
        Dim p As IPv4InterfaceProperties = adapterProperties.GetIPv4Properties()
        
        If p Is Nothing Then
            Console.WriteLine("No IPv4 information is available for this interface.")
            GoTo ContinueForEach1
        End If
        ' Display the IPv4 specific data.
        Console.WriteLine("  Index ............................. : {0}", p.Index)
        Console.WriteLine("  MTU ............................... : {0}", p.Mtu)
        Console.WriteLine("  APIPA active....................... : {0}", p.IsAutomaticPrivateAddressingActive)
        Console.WriteLine("  APIPA enabled...................... : {0}", p.IsAutomaticPrivateAddressingEnabled)
        Console.WriteLine("  Forwarding enabled................. : {0}", p.IsForwardingEnabled)
        Console.WriteLine("  Uses WINS ......................... : {0}", p.UsesWins)
    ContinueForEach1:
    Next adapter

End Sub

Uwagi

Należy pamiętać, że informacje w obiekcie zwróconym przez tę metodę odzwierciedlają interfejsy od czasu utworzenia tablicy. Te informacje nie są aktualizowane dynamicznie.