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TcpConnectionInformation Class
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TcpConnectionInformation Class

Provides information about the Transmission Control Protocol (TCP) connections on the local computer.


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

public abstract class TcpConnectionInformation

The TcpConnectionInformation type exposes the following members.

Protected methodTcpConnectionInformationInitializes a new instance of the TcpConnectionInformation class.

Public propertyLocalEndPointGets the local endpoint of a Transmission Control Protocol (TCP) connection.
Public propertyRemoteEndPointGets the remote endpoint of a Transmission Control Protocol (TCP) connection.
Public propertyStateGets the state of this Transmission Control Protocol (TCP) connection.

Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

TCP is a connection-oriented reliable protocol for transporting data between networked computers. It is defined in IETF RFC 793.

The following example displays endpoint information for active TCP connections.

        public static void GetTcpConnections()
            IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
//            TcpConnectionInformation connections = properties.GetActiveTcpConnections();
            TcpConnectionInformation[] connections = properties.GetActiveTcpConnections();

            foreach (TcpConnectionInformation t in connections)
                Console.Write("Local endpoint: {0} ",t.LocalEndPoint.Address);
                Console.Write("Remote endpoint: {0} ",t.RemoteEndPoint.Address);

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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