System.Net.IPAddress.MapToIPv6 C# (CSharp) Method

        public IPAddress MapToIPv6()
        {
            if (IsIPv6)
            {
                return this;
            }

            uint address = PrivateAddress;
            ushort[] labels = new ushort[NumberOfLabels];
            labels[5] = 0xFFFF;
            labels[6] = (ushort)(((address & 0x0000FF00) >> 8) | ((address & 0x000000FF) << 8));
            labels[7] = (ushort)(((address & 0xFF000000) >> 24) | ((address & 0x00FF0000) >> 8));
            return new IPAddress(labels, 0);
        }

		static bool IsNetworkAvailable (out NetworkReachabilityFlags flags)
		{
			if (defaultRouteReachability == null) {
				var ipAddress = new IPAddress (0);
				defaultRouteReachability = new NetworkReachability (ipAddress.MapToIPv6 ());
				defaultRouteReachability.SetNotification (OnChange);
				defaultRouteReachability.Schedule (CFRunLoop.Current, CFRunLoop.ModeDefault);
			}
			return defaultRouteReachability.TryGetFlags (out flags) && IsReachableWithoutRequiringConnection (flags);
		}