It tests all the gateways that the data package has gone through from the source to the destination. It is usually used to check the network connections and to locate the fault.

Trace Principle:
The process for running is as follows: The source computer sends a data packet with the TTL as 1. The first hop responds with an ICMP error message indicating that the packet is not sent due to TTL timeout. The data packet is sent with the TTL as 2, and then likewise the second hop responses TTL timeout. The process is carried on until the data packet reaches the destination. The purpose of these procedures is to record every original address of the ICMP TTL timeout message. These addresses form the route for sending an IP packet to the destination.
If the network is found faulty through PING, you can use TRACERT to locate the fault.
If the route address in the response is 0.0.0.0, it means that the test passed through a route over board.
The output of TRACERT includes the IP addresses of all the gateways that the data packet has gone through from the source to the destination, and the response duration for each gateway. If the response time expires, it outputs a star sign "*".

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