Using the tracert Command The tracert command (traceroute in Unix/Linux implementations) is one of the key diagnostic tools for TCP/IP. It displays a list of all the routers that a packet must go through to get from the computer where tracert is run to any other computer on the Internet. Each one of these routers is called a hop, presumably because the original designers of the IP protocol played a lot of hopscotch when they were young. If you can’t connect to another computer, you can use tracert to find out exactly where the problem is occurring.
