Traceroute allows you to discover a network path from one host to another. Traceroute is extremely helpful examining network hops (or network devices traversed over) and information including IP Address, DNS servers, and average time taken over each hop. A popular use of traceroute is to identify network bottlenecks (poor speed performance) happening in network equipment you do not own (network equipment in the Internet). Use Terminal in Mac OS X to traceroute any network address on your local network or the Internet.

Use the fsusage command line to trace SymDaemon file activity instead. To install Instruments, you must install Xcode, the Macintosh development tools. Xcode is free and can be obtained via the following means: The Mac App store (in Mac OS X 10.6.8 and later - requires registration with the App Store).

Note: While traceroute attempts to explore network path hosts typically outside your private network, traceroute results always vary depending on the network hops you attempt to resolve. For instance, you may not receive replies from every device in your traceroute. Unresponsive devices are represented as 3 asterisks ***. Traceroute will always try to resolve hosts, but it can’t always. Devices that it cannot resolve are usually blocked by a firewall.

1. Follow these steps to run a traceroute on a Mac operating system. Launch Network Utility; Click Traceroute. Enter the domain name for which you want to perform a traceroute; Click Trace; Select the results, and then right-click and select Copy or press Command + C to copy the test. Paste the text into a text editor and save the file.
2. Nov 17, 2020 Last Updated: November 17, 2020 Tested When your Mac is connected to a network, it is assigned an address on the network called an IP address. The IP address is four sets of digits separated by periods, with up to three digits per set.
3. The first step in recording a packet trace on the Mac is to choose the correct interface. If you choose the wrong interface, you may end up recording an empty packet trace. For example, if you use the en0 interface on a Mac that has built-in Ethernet but is connected to the Internet over Wi-Fi, your packet trace will include all the traffic.
4. Control–Command–Power button:. Force your Mac to restart, without prompting to save any open and unsaved documents. Control–Command–Media Eject: Quit all apps, then restart your Mac. If any open documents have unsaved changes, you will be asked whether you want to save them.

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1. Open Terminal (Applications -> Utilities -> Terminal)

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2. Type the following command

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3. Terminal will send a network packet to google.com. Watch as the network packet moves out of your local network, past your ISP, and into the wild. Eventually, the traceroute will complete and it should look like something similar below.

As you see, traceroute provides detailed information about a network destination. Traceroute has a variety of command options you can play with in Terminal. Take a look below.