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TcpClient Constructor (IPEndPoint)

Initializes a new instance of the TcpClient class and binds it to the specified local endpoint.

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

public TcpClient(
	IPEndPoint localEP


Type: System.Net.IPEndPoint

The IPEndPoint to which you bind the TCP Socket.


The localEP parameter is null.

This constructor creates a new TcpClient and binds it to the IPEndPoint specified by the localEP parameter. Before you call this constructor, you must create an IPEndPoint using the IP address and port number from which you intend to send and receive data. You do not need to specify a local IP address and port number before connecting and communicating. If you create a TcpClient using any other constructor, the underlying service provider will assign the most appropriate local IP address and port number.

You must call the Connect method before sending and receiving data.


This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing.

The following code example demonstrates how to create an instance of the TcpClient class using a local endpoint.

//Creates a TCPClient using a local end point.
IPAddress ipAddress = Dns.GetHostEntry (Dns.GetHostName ()).AddressList[0];
IPEndPoint ipLocalEndPoint = new IPEndPoint(ipAddress, 0);
TcpClient tcpClientA = new TcpClient (ipLocalEndPoint);
//Creates a TCPClient using a local end point.
IPAddress* ipAddress = Dns::Resolve(Dns::GetHostName())->AddressList[0];
IPEndPoint* ipLocalEndPoint = new IPEndPoint(ipAddress, 0);
TcpClient* tcpClientA = new TcpClient(ipLocalEndPoint);

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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