DestinationUnreachableMessagesSent Property

IcmpV4Statistics.DestinationUnreachableMessagesSent Property


Gets the number of Internet Control Message Protocol version 4 (ICMPv4) messages that were sent because of a packet having an unreachable address in its destination.

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

public abstract long DestinationUnreachableMessagesSent { get; }

Property Value

Type: System.Int64

An Int64 value that specifies the total number of Destination Unreachable messages sent.

A Destination Unreachable message can be sent to the computer that is the source of a packet for any of the following reasons:

  • The computer cannot find a route to the destination address.

  • Communication with the destination address is administratively prohibited. For example, a firewall prevents delivery of packets to the destination.

  • The destination address is unreachable.

  • The destination port is unreachable. For example, there is no listener available for the packet's protocol.

The following example displays the value of this property.

public static void ShowIcmpV4UnreachableData()
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    IcmpV4Statistics statistics = properties.GetIcmpV4Statistics();
    Console.WriteLine("  Destination Unreachables ............ Sent: {0,-10}   Received: {1,-10}",

.NET Framework
Available since 2.0
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