IPInterfaceProperties.AnycastAddresses 属性
定义
获取分配给此接口的任意广播 IP 地址。Gets the anycast IP addresses assigned to this interface.
public:
abstract property System::Net::NetworkInformation::IPAddressInformationCollection ^ AnycastAddresses { System::Net::NetworkInformation::IPAddressInformationCollection ^ get(); };
public abstract System.Net.NetworkInformation.IPAddressInformationCollection AnycastAddresses { get; }
member this.AnycastAddresses : System.Net.NetworkInformation.IPAddressInformationCollection
Public MustOverride ReadOnly Property AnycastAddresses As IPAddressInformationCollection
属性值
IPAddressInformationCollection,包含此接口的任意广播地址。An IPAddressInformationCollection that contains the anycast addresses for this interface.
示例
下面的代码示例显示了本地计算机上的网络接口的任意播地址。The following code example displays the anycast addresses for the network interfaces on the local computer.
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
注解
任意播地址标识多台计算机。An anycast address identifies multiple computers. 发送到任意播地址的数据包将发送到由该地址标识的一台计算机。Packets sent to an anycast address are sent to one of the computers identified by the address. 任意播寻址是一项用于更新一组主机的路由器表的 IPv6 功能。Anycast addressing is an IPv6 feature used to update router tables for a group of hosts.