> I still don't see why you would need to do this. What did you change? Sorry, I think I didn't explain clearly. I forgot to set pan_id and short address. Now the wpan-ping works fine. I tried to create a server program which is based on 802.15.4 and 6LoWPAN, and I imitate the code from wpan-ping. I didn't mean that I literally changed the wpan-ping. > Its the normal IPv6 socket API of linux. Thank you for your explanation, Stefan Schmidt. Regards -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html