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:
property long long DestinationUnreachableMessagesSent {
	virtual long long get() abstract;
}

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.

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
Available since 2.0
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