Gets the number of Internet Control Message Protocol version 6 (ICMPv6) messages received because of a packet having an unreachable address in its destination.
Assembly: System (in System.dll)
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.