System.Net.NetworkInformation.IPGlobalProperties.GetActiveTcpConnections Method

Returns information about the Internet Protocol version 4 (IPv4) and IPv6 Transmission Control Protocol (TCP) connections on the local computer.

Syntax

public abstract TcpConnectionInformation[] GetActiveTcpConnections ()

Returns

A System.Net.NetworkInformation.TcpConnectionInformation array that contains objects that describe the active TCP connections, or an empty array if no active TCP connections are detected.

Remarks

The objects returned by this method include connections in all TCP states except the TcpState.Listen state. You can check the state of a connection by calling TcpConnectionInformation.State.

The TCP protocol is defined in IETF RFC 793. Note that the objects returned by this method reflect the connections as of the time the array is created. This information is not updated dynamically.

Requirements

Namespace: System.Net.NetworkInformation
Assembly: System (in System.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0