IPInterfaceProperties.DhcpServerAddresses Propriété

Définition

Espace de noms:

System.Net.NetworkInformation

Assembly:

System.Net.NetworkInformation.dll

Obtient les adresses de serveurs DHCP (Dynamic Host Configuration Protocol) pour cette interface.

public:
 abstract property System::Net::NetworkInformation::IPAddressCollection ^ DhcpServerAddresses { System::Net::NetworkInformation::IPAddressCollection ^ get(); };

[System.Runtime.Versioning.UnsupportedOSPlatform("android")]
[System.Runtime.Versioning.UnsupportedOSPlatform("freebsd")]
[System.Runtime.Versioning.UnsupportedOSPlatform("ios")]
[System.Runtime.Versioning.UnsupportedOSPlatform("osx")]
[System.Runtime.Versioning.UnsupportedOSPlatform("tvos")]
public abstract System.Net.NetworkInformation.IPAddressCollection DhcpServerAddresses { get; }

[<System.Runtime.Versioning.UnsupportedOSPlatform("android")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("freebsd")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("ios")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("osx")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("tvos")>]
member this.DhcpServerAddresses : System.Net.NetworkInformation.IPAddressCollection

Public MustOverride ReadOnly Property DhcpServerAddresses As IPAddressCollection

Valeur de propriété

IPAddressCollection

IPAddressCollection qui contient les informations d'adresses pour les serveurs DHCP ou un tableau vide si aucun serveur n'est trouvé.

Attributs

UnsupportedOSPlatformAttribute

Exemples

L’exemple de code suivant affiche les informations d’adresse DHCP pour les interfaces réseau sur l’ordinateur local.

void DisplayDhcpServerAddresses()
{
   Console::WriteLine( "DHCP Servers" );
   array<NetworkInterface^>^adapters = NetworkInterface::GetAllNetworkInterfaces();
   System::Collections::IEnumerator^ myEnum19 = adapters->GetEnumerator();
   while ( myEnum19->MoveNext() )
   {
      NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum19->Current);
      IPInterfaceProperties ^ adapterProperties = adapter->GetIPProperties();
      IPAddressCollection ^ addresses = adapterProperties->DhcpServerAddresses;
      if ( addresses->Count > 0 )
      {
         Console::WriteLine( adapter->Description );
         System::Collections::IEnumerator^ myEnum20 = addresses->GetEnumerator();
         while ( myEnum20->MoveNext() )
         {
            IPAddress^ address = safe_cast<IPAddress^>(myEnum20->Current);
            Console::WriteLine( "  Dhcp Address ............................ : {0}", 
               address );
         }
         Console::WriteLine();
      }
   }
}

public static void DisplayDhcpServerAddresses()
{
    Console.WriteLine("DHCP Servers");
    NetworkInterface[] adapters  = NetworkInterface.GetAllNetworkInterfaces();
    foreach (NetworkInterface adapter in adapters)
    {

        IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
        IPAddressCollection addresses = adapterProperties.DhcpServerAddresses;
        if (addresses.Count >0)
        {
            Console.WriteLine(adapter.Description);
            foreach (IPAddress address in addresses)
            {
                Console.WriteLine("  Dhcp Address ............................ : {0}",
                    address.ToString());
            }
            Console.WriteLine();
        }
    }
}

Public Shared Sub DisplayDhcpServerAddresses() 
    Console.WriteLine("DHCP Servers")
    Dim adapters As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
    Dim adapter As NetworkInterface
    For Each adapter In  adapters
        
        Dim adapterProperties As IPInterfaceProperties = adapter.GetIPProperties()
        Dim addresses As IPAddressCollection = adapterProperties.DhcpServerAddresses
        If addresses.Count > 0 Then
            Console.WriteLine(adapter.Description)
            Dim address As IPAddress
            For Each address In  addresses
                Console.WriteLine("  Dhcp Address ............................ : {0}", address.ToString())
            Next address
            Console.WriteLine()
        End If
    Next adapter

End Sub

Remarques

Le protocole DHCP (Dynamic Host Configuration Protocol) permet à un ordinateur d’obtenir une adresse réseau à partir d’un serveur DHCP, au lieu d’utiliser une adresse réseau statique (fixe). Un serveur DHCP n’affecte pas d’adresses de manière permanente ; au lieu de cela, il utilise temporairement l’une des nombreuses adresses disponibles sur l’ordinateur.