The client_connection_file_transfer.pcap file is empty while transfering file and the packets are not being captured in milestone 3. But tcpdump works just fine when performing ping and traceroute. Please let me know why this problem persists.
First see if it gets printed on screen and then you can try redirecting it to file. You may be missing something in the way you are executing tcpdump with the parameters input to it.
Use References and Instruction and use google for more clarification
Figured it out. Thanks