NetworkInterface NetworkInterface NetworkInterface NetworkInterface Class

Definizione

Fornisce informazioni di configurazione e statistiche per un'interfaccia di rete.Provides configuration and statistical information for a network interface.

public ref class NetworkInterface abstract
public abstract class NetworkInterface
type NetworkInterface = class
Public MustInherit Class NetworkInterface
Ereditarietà
NetworkInterfaceNetworkInterfaceNetworkInterfaceNetworkInterface

Esempi

Esempio di codice seguente consente di visualizzare informazioni sulle interfacce.The following code example displays information about interfaces.

void ShowNetworkInterfaces()
{
   IPGlobalProperties ^ computerProperties = IPGlobalProperties::GetIPGlobalProperties();
   array<NetworkInterface^>^nics = NetworkInterface::GetAllNetworkInterfaces();
   Console::WriteLine( "Interface information for {0}.{1}     ", computerProperties->HostName, computerProperties->DomainName );
   if ( nics == nullptr || nics->Length < 1 )
   {
      Console::WriteLine( "  No network interfaces found." );
      return;
   }

   Console::WriteLine( "  Number of interfaces .................... : {0}", nics->Length );
   System::Collections::IEnumerator^ myEnum4 = nics->GetEnumerator();
   while ( myEnum4->MoveNext() )
   {
      NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum4->Current);
      IPInterfaceProperties ^ properties = adapter->GetIPProperties();
      Console::WriteLine();
      Console::WriteLine( adapter->Description );
      Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) );
      Console::WriteLine( "  Interface type .......................... : {0}",
         adapter->NetworkInterfaceType );
      Console::WriteLine( "  Physical Address ........................ : {0}",
         adapter->GetPhysicalAddress() );
      Console::WriteLine( "  Operational status ...................... : {0}",
         adapter->OperationalStatus );
      String^ versions = "";

      // Create a display string for the supported IP versions.
      if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) )
      {
         versions = "IPv4";
      }
      if ( adapter->Supports( NetworkInterfaceComponent::IPv6 ) )
      {
         if ( versions->Length > 0 )
         {
            versions = String::Concat( versions, " " );
         }
         versions = String::Concat( versions, "IPv6" );
      }
      Console::WriteLine( "  IP version .............................. : {0}",
         versions );
      ShowIPAddresses( properties );

      // The following information is not useful for loopback adapters.
      if ( adapter->NetworkInterfaceType == NetworkInterfaceType::Loopback )
      {
         continue;
      }
      Console::WriteLine( "  DNS suffix .............................. : {0}",
         properties->DnsSuffix );
      String^ label;

      if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) )
      {
         IPv4InterfaceProperties ^ ipv4 = properties->GetIPv4Properties();
         Console::WriteLine( "  MTU...................................... : {0}",
            ipv4->Mtu );
         if ( ipv4->UsesWins )
         {
            IPAddressCollection ^ winsServers = properties->WinsServersAddresses;
            if ( winsServers->Count > 0 )
            {
               label = "  WINS Servers ............................ :";
               ShowIPAddresses( label, winsServers );
            }
         }
      }
      Console::WriteLine( "  DNS enabled ............................. : {0}",
         properties->IsDnsEnabled );
      Console::WriteLine( "  Dynamically configured DNS .............. : {0}",
         properties->IsDynamicDnsEnabled );
      Console::WriteLine( "  Receive Only ............................ : {0}",
         adapter->IsReceiveOnly );
      Console::WriteLine( "  Multicast ............................... : {0}",
         adapter->SupportsMulticast );
      ShowInterfaceStatistics( adapter );
      Console::WriteLine();
   }
}
public static void ShowNetworkInterfaces()
{
    IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    Console.WriteLine("Interface information for {0}.{1}     ",
            computerProperties.HostName, computerProperties.DomainName);
    if (nics == null || nics.Length < 1)
    {
        Console.WriteLine("  No network interfaces found.");
        return;
    }
                     
    Console.WriteLine("  Number of interfaces .................... : {0}", nics.Length);
    foreach (NetworkInterface adapter in nics)
    {
        IPInterfaceProperties properties = adapter.GetIPProperties();
        Console.WriteLine();
        Console.WriteLine(adapter.Description);
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,'='));
        Console.WriteLine("  Interface type .......................... : {0}", adapter.NetworkInterfaceType);
        Console.WriteLine("  Physical Address ........................ : {0}", 
                   adapter.GetPhysicalAddress().ToString());
        Console.WriteLine("  Operational status ...................... : {0}", 
            adapter.OperationalStatus);
        string versions ="";

        // Create a display string for the supported IP versions.
        if (adapter.Supports(NetworkInterfaceComponent.IPv4))
        {
             versions = "IPv4";
         }
        if (adapter.Supports(NetworkInterfaceComponent.IPv6))
        {
            if (versions.Length > 0)
            {
                versions += " ";
             }
            versions += "IPv6";
        }
        Console.WriteLine("  IP version .............................. : {0}", versions);
        ShowIPAddresses(properties);
        
        // The following information is not useful for loopback adapters.
        if (adapter.NetworkInterfaceType == NetworkInterfaceType.Loopback)
        {
            continue;
        }
        Console.WriteLine("  DNS suffix .............................. : {0}", 
            properties.DnsSuffix);
        
        string label;
        if (adapter.Supports(NetworkInterfaceComponent.IPv4))
        {
            IPv4InterfaceProperties ipv4 = properties.GetIPv4Properties();
            Console.WriteLine("  MTU...................................... : {0}", ipv4.Mtu);
            if (ipv4.UsesWins)
            {
                
                IPAddressCollection winsServers = properties.WinsServersAddresses;
                if (winsServers.Count > 0)
                {
                    label = "  WINS Servers ............................ :";
                    ShowIPAddresses(label, winsServers);
                }
            }
        }
                 
        Console.WriteLine("  DNS enabled ............................. : {0}", 
            properties.IsDnsEnabled);
        Console.WriteLine("  Dynamically configured DNS .............. : {0}", 
            properties.IsDynamicDnsEnabled);
        Console.WriteLine("  Receive Only ............................ : {0}", 
            adapter.IsReceiveOnly);
        Console.WriteLine("  Multicast ............................... : {0}", 
            adapter.SupportsMulticast);
        ShowInterfaceStatistics(adapter);
        
        Console.WriteLine();
    }

Commenti

Questa classe incapsula i dati per le interfacce di rete, noto anche come schede, nel computer locale.This class encapsulates data for network interfaces, also known as adapters, on the local computer. Non creare istanze di questa classe. il GetAllNetworkInterfaces metodo restituisce una matrice che contiene un'istanza di questa classe per ogni interfaccia di rete nel computer locale.You do not create instances of this class; the GetAllNetworkInterfaces method returns an array that contains one instance of this class for each network interface on the local computer.

Costruttori

NetworkInterface() NetworkInterface() NetworkInterface() NetworkInterface()

Inizializza una nuova istanza della classe NetworkInterface.Initializes a new instance of the NetworkInterface class.

Proprietà

Description Description Description Description

Ottiene la descrizione dell'interfaccia.Gets the description of the interface.

Id Id Id Id

Ottiene l'identificatore della scheda di rete.Gets the identifier of the network adapter.

IPv6LoopbackInterfaceIndex IPv6LoopbackInterfaceIndex IPv6LoopbackInterfaceIndex IPv6LoopbackInterfaceIndex

Ottiene l'indice dell'interfaccia di loopback IPv6.Gets the index of the IPv6 loopback interface.

IsReceiveOnly IsReceiveOnly IsReceiveOnly IsReceiveOnly

Ottiene il valore Boolean che indica se l'interfaccia di rete è impostata in modo da ricevere solo pacchetti di dati.Gets a Boolean value that indicates whether the network interface is set to only receive data packets.

LoopbackInterfaceIndex LoopbackInterfaceIndex LoopbackInterfaceIndex LoopbackInterfaceIndex

Ottiene l'indice dell'interfaccia di loopback IPv4.Gets the index of the IPv4 loopback interface.

Name Name Name Name

Ottiene il nome della scheda di rete.Gets the name of the network adapter.

NetworkInterfaceType NetworkInterfaceType NetworkInterfaceType NetworkInterfaceType

Ottiene il tipo di interfaccia.Gets the interface type.

OperationalStatus OperationalStatus OperationalStatus OperationalStatus

Ottiene lo stato operativo corrente della connessione di rete.Gets the current operational state of the network connection.

Speed Speed Speed Speed

Ottiene la velocità dell'interfaccia di rete.Gets the speed of the network interface.

SupportsMulticast SupportsMulticast SupportsMulticast SupportsMulticast

Ottiene il valore Boolean che indica se nell'interfaccia di rete è attivata la ricezione di pacchetti multicast.Gets a Boolean value that indicates whether the network interface is enabled to receive multicast packets.

Metodi

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determina se l'oggetto specificato è uguale all'oggetto corrente.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetAllNetworkInterfaces() GetAllNetworkInterfaces() GetAllNetworkInterfaces() GetAllNetworkInterfaces()

Restituisce oggetti che descrivono le interfacce di rete del computer locale.Returns objects that describe the network interfaces on the local computer.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Funge da funzione hash predefinita.Serves as the default hash function.

(Inherited from Object)
GetIPProperties() GetIPProperties() GetIPProperties() GetIPProperties()

Restituisce un oggetto che descrive la configurazione di questa interfaccia di rete.Returns an object that describes the configuration of this network interface.

GetIPStatistics() GetIPStatistics() GetIPStatistics() GetIPStatistics()

Ottiene le statistiche IP per questa istanza di NetworkInterface.Gets the IP statistics for this NetworkInterface instance.

GetIPv4Statistics() GetIPv4Statistics() GetIPv4Statistics() GetIPv4Statistics()

Ottiene le statistiche IPv$ per questa istanza di NetworkInterface.Gets the IPv4 statistics for this NetworkInterface instance.

GetIsNetworkAvailable() GetIsNetworkAvailable() GetIsNetworkAvailable() GetIsNetworkAvailable()

Indica se esiste una connessione di rete disponibile.Indicates whether any network connection is available.

GetPhysicalAddress() GetPhysicalAddress() GetPhysicalAddress() GetPhysicalAddress()

Restituisce l'indirizzo Media Access Control (MAC) o fisico della scheda di rete.Returns the Media Access Control (MAC) or physical address for this adapter.

GetType() GetType() GetType() GetType()

Ottiene l'oggetto Type dell'istanza corrente.Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Crea una copia superficiale dell'oggetto Object corrente.Creates a shallow copy of the current Object.

(Inherited from Object)
Supports(NetworkInterfaceComponent) Supports(NetworkInterfaceComponent) Supports(NetworkInterfaceComponent) Supports(NetworkInterfaceComponent)

Ottiene un valore Boolean che indica se l'interfaccia supporta il protocollo specificato.Gets a Boolean value that indicates whether the interface supports the specified protocol.

ToString() ToString() ToString() ToString()

Restituisce una stringa che rappresenta l'oggetto corrente.Returns a string that represents the current object.

(Inherited from Object)

Sicurezza

SecurityPermission
per l'esecuzione di codice non gestito.for executing unmanaged code. Enumerazione associata: UnmanagedCodeAssociated enumeration: UnmanagedCode

Si applica a