[ndnSIM] How to check for a data packet in the neighbor nodes

[Biozid Bostami]

Hello,I am recently looking for a way to check weather a data packet is in the neighboring router nodes of a router  or not. So, if anyone can kindly suggest a way it would be of much help to me. 
yours faithfully,Biozid Bostami  		 	   		  
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