CC2650: How to print the data in a packet received to the RPL border-router on console?

Can you elaborate you setup on testing this?

I did not get what you meant sir

Can you specify the HW setup and SW you use to test?

I have used a cc2650 launchpad configured as rpl border router and another launch pad configured as udp-client and sending data packets to the border router. And Im using a raspberry pi(putty installed) to access the user com port of the border-router. When I checked the com port outputs I was able to see the data which I transmitted from the other end (udp-client) but I was unable to find out at which part that serial printing is happening in the code.
However also I needed to check the RSSI value and even-though I used the sicslowpan_get_last_rssi() as you mentioned before, It did not give any output to the console (may be the place where I used the function is wrong). Hope you will be able to give me some advices.

Sir could you please check this issue? I really appreciate and waiting for an answer from you.