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IcmpV4Statistics.DestinationUnreachableMessagesReceived Property

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

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

public abstract long DestinationUnreachableMessagesReceived { get; }

Property Value

Type: System.Int64
An Int64 value that specifies the total number of Destination Unreachable messages that were received.

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}",
        statistics.DestinationUnreachableMessagesSent, 
        statistics.DestinationUnreachableMessagesReceived);
}

.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
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