Wireshark-users: [Wireshark-users] How to see data packet (UDP packet) coming from IEEE802.15.4 s

From: Mms Utm <mms_utm@xxxxxxxxx>
Date: Sat, 10 Jul 2010 00:28:45 -0700 (PDT)
Hi Everyone...
I am a newbie to this forum..I just sign-up :)

My problem is...I have installed Wireshark software on Linux Fedora Core 10 for my assignment..
I have put my program inside the small IEEE802.15.4 data sensor. This sensor will route packets between sensors and finally it will reach the laptop via USB port version 2.0. So I want to use wireshark to see any upcoming data packets only from the sensors.

But when I clicked 'Capture' and then 'any' tab it did not show up anything that comes from the sensors...all I get is only the Wi-Fi (internet)..I don't want internet packet..I only want my sensor data packets...

Please somebody help me..I have tried this and that but it never work...Urgent assignment..