Glen

I downloaded the 4.2 RC today and am using the Netduino 4.2 beta 1 firmware. Still have it throw an exception when it hits this line

new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);

Well.....here is this. I started looking into this thinking it wouldn't be that hard, and it was harder than I thought it would be. I don't actually have my netduino yet as I'm waiting for it to arrive still. I did test this in the emulator and it does seem to work as far as I can tell. I'm sure it could work better, but this seems to do ok. I'll actually try it out when my netduino plus arrives this weekend(hopefully). I used a bunch of the code from here and cut a lot out and changed it a bit to work with the micro framework, but it was my basis: http://www.winsocket...nication8i.html You can download the original full framework C# completed solution that goes with that tutorial here: http://www.winsocket...ocketPingCS.zip I also used the code for the BitConverter by Ravenheart that he posted here: http://forums.netdui...ch__1#entry2082 I took out the unsafe methods as they weren't being used. I created the NetworkHostConverter.cs since the micro framework doesn't have those conversions. I just loaded the original dll in dotpeek and did it the same way microsoft does. All that being said, there is probably some super easy way to do it, but sometimes you learn more doing it the hard way.