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Fritz!Box – capture network packets in Wireshark (tshark/tcpdump) format or ISDN in dtrace format

Posted by jpluimers on 2018/09/24

You can capture network packets on a Fritz!Box for any interface by:

  1. appending `/html/capture.html` to the IP address of your Fritz!Box
  2. providing your credentials
  3. for ISDN traces optionally entering any dtrace parameters in the edit box
  4. pressing the Start button for the port you want to capture
  5. pressing the Stop button when you are finished capturing

Example URL:

Note it’s ISDN [WayBackDtrace – Fritz!Box, not nx kernel [WayBackDTrace – Wikipedia

I’ve seen this on these devices:

  • Fritz!Box 7360 running FRITZ!OS 06.30
  • Fritz!Box 7490 running FRITZ!OS: 06.83

Note there are tons of tools allowing to capture from various scripting languages:


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