Traceroute - print the route packets take to network host.
The Internet is a large and complex aggregation of network hardware, connected together
by gateways. Tracking the route one's packets follow (or finding the miscreant gateway
that as discarding your packets) can be difficult. Traceroute utilizes the IP protocol
'time to live' field and attempts to elicit an ICMP TIME_EXCEEDED response from each
gateway along the path to some host.
The only mandatory parameter is the destination host name or IP number. The default
probe datagram length is 40 bytes, but this may be increased by specifying a packet
length (in bytes) after the destination host name.