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IPAddress.Loopback Field

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

Namespace:  System.Net
Assembly:  System (in System.dll)

'Declaration
Public Shared ReadOnly Loopback As IPAddress
'Usage
Dim value As IPAddress 

value = IPAddress.Loopback

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

The following example prints the Loopback address to the console.

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

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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