Use Wireshark or similar software to find out how ping is implemented using ICMP messages. Show the packets captured to verify your answer. Note that the ping command may be implemented differently on...

Use Wireshark or similar software to find out how ping is implemented using ICMP messages. Show the packets captured to verify your answer. Note that the ping command may be implemented differently on different operating systems.

Trace ip_route_input() and ip_route_ output_key() in the Linux source codes. Describe how IP packets are forwarded to the upper layer and the next hop, respectively.