dear Sifat Ullah,

We cant bring it on the node set up. whatever the routing algorithm u have chosen for trans receiving the packets, include the pre deterministic possible routes among the set of nodes and give a logic to select a route.

Thanks Lalitha

Trace files are produce at the end and you can have a piece of code to track the specific packet 

HI, Please send your documents for review and response. Thanks

Yes you can just fix MAXTTL limit in omnet.