By default a UDP datagram sent to an unreachable destination will result in an ICMP Destination Unreachable packet. This can result in a SocketException on the local end. To avoid this behaviour these ICMP packets are ignored by default, i.e. this value is set to true. Setting this value to false could cause new UDP connections to close, possibly unexpectedly.

public static bool IgnoreICMPDestinationUnreachable { get; set; }

public static bool IgnoreICMPDestinationUnreachable { get; set; }