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A TCP/IP utility, originally Unix, which allows the user to determine the route packets are taking to a particular host. Traceroute works by increasing the "time to live" value of packets and seeing how far they get, until they reach the given destination; thus, a lengthening trail of hosts passed through is built up.
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An Internet utility that describes the path in real time from the client machine to the remote host being contacted. It reports the IP addresses of all the routers in between. Windows comes with its own Traceroute utility (TRACERT.EXE) that is executed from the command line.

A Visual Trace
You see the nodes pop into place with NeoTrace, originally created by NeoWorx. This shows the 13 nodes from The Computer Language Company to HP's website in California. Starting at the Comcation ISP in Doylestown, PA, the route is traced to the Digex ISP (206 and digex nodes) through various routers in the BBN backbone that HP is connected to. Details are displayed when the cursor is moved over a node's icon. For more information, visit, which bought NeoWorx and incorporated NeoTrace into its Personal Firewall service.
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References in periodicals archive ?
When the traceroute returns NULL, the delay definitely reaches an unavailable value.
As the preliminary step, we use traceroute and the topology inference schemes discussed in Section 3.2 to build a tree rooted at content server.
We ran traceroute and collected routing information to construct network topology.
Use traceroute command to get route path from probe to candidate landmarks during small network delay fluctuation period repeatedly, and merge paths to obtain more detailed routing information and the minimum single-hop delay.
"Secure traceroute to detect faulty or malicious routing".
TCP/IP stack tool traceroute reported 2 hops (routers) to VPN server.
From Ann Arbor, Michigan, the program Traceroute can be used to see how it traveled to Google's servers in Mountain View, California:
The anchor helps gain valuable information about the health of network by measuring ping, traceroute, DNS, and HTTP(S).
All of RTT were measured by ping and traceroute commands that are Linux standard programs.
Attempts to use a traceroute utility failed at the hop between the last AS outside of Iran and AS12880.
If all BitTorrent peers belong to N ASes, we select one peer randomly from every AS, then we run traceroute between any two peers to obtain their end-to-end route on IP layer.