IPAddress.Loopback Field

Reference

Definition

Namespace:: System.Net

Assemblies:: System.dll, System.Net.Primitives.dll

Assemblies:: netstandard.dll, System.Net.Primitives.dll

Assembly:: System.Net.Primitives.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Source:: IPAddress.cs

Source:: IPAddress.cs

Source:: IPAddress.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Provides the IP loopback address. This field is read-only.

public: static initonly System::Net::IPAddress ^ Loopback;

public static readonly System.Net.IPAddress Loopback;

 staticval mutable Loopback : System.Net.IPAddress

Public Shared ReadOnly Loopback As IPAddress

Field Value

IPAddress

Examples

The following example prints the Loopback address to the console.

void PrintLoopbackAddress()
{
   // Gets the IP loopback address and converts it to a string.
   String^ IpAddressString = IPAddress::Loopback->ToString();
   Console::WriteLine( "Loopback IP address : {0}", IpAddressString );
}

public void PrintLoopbackAddress()
{
  // Gets the IP loopback address and converts it to a string.
  String IpAddressString = IPAddress.Loopback.ToString();
  Console.WriteLine("Loopback IP address : " + IpAddressString);
}

Public Sub PrintLoopbackAddress()
    ' Gets the IP loopback address and converts it to a string.
    Dim IpAddressString As [String] = IPAddress.Loopback.ToString()
    Console.WriteLine(("Loopback IP address : " + IpAddressString))
End Sub

Remarks

The Loopback field is equivalent to 127.0.0.1 in dotted-quad notation.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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