IPAddressInformation.IsDnsEligible Özellik
Tanım
Önemli
Bazı bilgiler ürünün ön sürümüyle ilgilidir ve sürüm öncesinde önemli değişiklikler yapılmış olabilir. Burada verilen bilgilerle ilgili olarak Microsoft açık veya zımni hiçbir garanti vermez.
Boolean İnternet Protokolü (IP) adresinin bir Etki Alanı Adı Sistemi (DNS) sunucu veritabanında görünecek şekilde geçerli olup olmadığını gösteren bir değer alır.
public:
abstract property bool IsDnsEligible { bool get(); };
public abstract bool IsDnsEligible { get; }
[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public abstract bool IsDnsEligible { get; }
member this.IsDnsEligible : bool
[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
member this.IsDnsEligible : bool
Public MustOverride ReadOnly Property IsDnsEligible As Boolean
Özellik Değeri
true
adres bir DNS veritabanında gösterilebilirse; aksi takdirde , false
.
- Öznitelikler
Örnekler
Aşağıdaki kod örneği, yerel bilgisayardaki ağ arabirimleri için anycast adreslerini görüntüler.
void DisplayAnycastAddresses()
{
int count = 0;
Console::WriteLine( "Anycast Addresses" );
array<NetworkInterface^>^adapters = NetworkInterface::GetAllNetworkInterfaces();
System::Collections::IEnumerator^ myEnum13 = adapters->GetEnumerator();
while ( myEnum13->MoveNext() )
{
NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum13->Current);
IPInterfaceProperties ^ adapterProperties = adapter->GetIPProperties();
IPAddressInformationCollection ^ anyCast = adapterProperties->AnycastAddresses;
if ( anyCast->Count > 0 )
{
Console::WriteLine( adapter->Description );
System::Collections::IEnumerator^ myEnum14 = anyCast->GetEnumerator();
while ( myEnum14->MoveNext() )
{
IPAddressInformation ^ any = safe_cast<IPAddressInformation ^>(myEnum14->Current);
Console::WriteLine( " Anycast Address .......................... : {0} {1} {2}",
any->Address, any->IsTransient ? "Transient" : "",
any->IsDnsEligible ? "DNS Eligible" : "" );
count++;
}
Console::WriteLine();
}
}
if (count == 0)
{
Console::WriteLine(" No anycast addresses were found.");
Console::WriteLine();
}
}
public static void DisplayAnycastAddresses()
{
int count = 0;
Console.WriteLine("Anycast Addresses");
NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface adapter in adapters)
{
IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
IPAddressInformationCollection anyCast = adapterProperties.AnycastAddresses;
if (anyCast.Count >0)
{
Console.WriteLine(adapter.Description);
foreach (IPAddressInformation any in anyCast)
{
Console.WriteLine(" Anycast Address .......................... : {0} {1} {2}",
any.Address,
any.IsTransient ? "Transient" : "",
any.IsDnsEligible ? "DNS Eligible" : ""
);
count++;
}
Console.WriteLine();
}
}
if (count == 0)
{
Console.WriteLine(" No anycast addressses were found.");
Console.WriteLine();
}
}
Public Shared Sub DisplayAnycastAddresses()
Dim count as Integer = 0
Console.WriteLine("Anycast Addresses")
Dim adapters As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
Dim adapter As NetworkInterface
For Each adapter In adapters
Dim adapterProperties As IPInterfaceProperties = adapter.GetIPProperties()
Dim anyCast As IPAddressInformationCollection = adapterProperties.AnycastAddresses
If anyCast.Count > 0 Then
Console.WriteLine(adapter.Description)
Dim any As IPAddressInformation
For Each any In anyCast
Console.WriteLine(" Anycast Address .......................... : {0} {1} {2}", any.Address, IIf(any.IsTransient, "Transient", ""), IIf(any.IsDnsEligible, "DNS Eligible", ""))
'TODO: For performance reasons this should be changed to nested IF statements
'TODO: For performance reasons this should be changed to nested IF statements
count += 1
Next any
Console.WriteLine()
End If
Next adapter
if count = 0 then
Console.WriteLine(" No anycast addresses were found.")
Console.WriteLine()
End if
End Sub
Açıklamalar
169.254.0.0 ile 169.254.255.255 aralığındaki adresler DNS için uygun değildir. Bu adresler Otomatik Özel IP Adresi (APIPA) için ayrılmıştır.