NetworkInterfaceComponent Enumeration
Specifies the Internet Protocol versions that are supported by a network interface.
Assembly: System (in System.dll)
The values in this enumeration are used by the Supports method to specify the Internet Protocol version supported by a network interface.
The following code example checks whether a network interface supports IPv4.
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 'DisplayIPv4NetworkInterfaces
void DisplayIPv4NetworkInterfaces()
{
NetworkInterface* nics[] = NetworkInterface::GetAllNetworkInterfaces();
IPGlobalProperties* properties = IPGlobalProperties::GetIPGlobalProperties();
Console::WriteLine(S"IPv4 interface information for {0}.{1}",
properties->HostName, properties->DomainName);
System::Collections::IEnumerator* myEnum23 = nics->GetEnumerator();
while (myEnum23->MoveNext())
{
NetworkInterface* adapter = __try_cast<NetworkInterface*>(myEnum23->Current);
// Only display informatin for interfaces that support IPv4.
if (adapter->Supports(NetworkInterfaceComponent::IPv4) == false)
{
continue;
}
Console::WriteLine();
Console::WriteLine(adapter->Description);
// Underline the description.
Console::WriteLine(String::Empty->PadLeft(adapter->Description->Length,'='));
IPInterfaceProperties* adapterProperties = adapter->GetIPInterfaceProperties();
// Try to get the IPv4 interface properties.
IPv4InterfaceProperties* p = adapterProperties->GetIPv4InterfaceProperties();
if (p == 0)
{
Console::WriteLine(S"No IPv4 information is available for this interface.");
continue;
}
// Display the IPv4 specific data.
Console::WriteLine(S" Index ............................. : {0}", __box(p->Index));
Console::WriteLine(S" MTU ............................... : {0}", __box(p->Mtu));
Console::WriteLine(S" APIPA active....................... : {0}", __box(p->IsAutomaticPrivateAddressingActive));
Console::WriteLine(S" APIPA enabled...................... : {0}", __box(p->IsAutomaticPrivateAddressingEnabled));
Console::WriteLine(S" Forwarding enabled................. : {0}", __box(p->IsForwardingEnabled));
Console::WriteLine(S" Uses WINS ......................... : {0}", __box(p->UsesWins));
}
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.