It needs to be restarted after each reboot (modprobe usbmon), a PITA we’ll address later.Ĥ.2 Added the requisite capabilities to dumpcapĤ.3 Changed permissions as directed (644) on /dev/usbmon*, added the wireshark group and added the user to the group.Ĥ.4 Configured Wireshark for non-root use, but that shows the same results as running it as root (yes, I know, a no-no). We have laboriously followed and many of its adherents, particularlyĤ.1 Sorted out usbmon. We can read that port at the command line interface-CLI-with cat /dev/ttyUSB0 and see the NMEA 0183 ASCII sentences but not the Ethernet stream.ģ.1 I understand that the EtherNet traffic is higher frequency and multiplexed, yada yada, so will address that aspect (“EtherNet over USB”) in due course, but first we need Wireshark to see the basic USB data that we can see on the CLI (presumably on usbmon0) to ensure that Wireshark is reading the USB connection.

It is recognized by the laptop and connected to ttyUSB0. We have a Gigaware 2603487 USB-A to Serial Cable. We have not touched the boat wiring, but have lost the cable and necessarily moved the software to a new laptop ( openSUSE Leap 42.1 Linux) that does not have an Ethernet socket, only USB. We did have a Serial to Ethernet cable that connected to an older laptop running the software that had an Ethernet Socket. The bridged data are wired to a DB-9F chassis connector near the laptop. We have a piece of boat gear (RayMarine C120W) that bridges NMEA 0183 (ASCII) and EtherNet (“SeaTalk-HS”) data for transmission to Windows software (RayTech Navigation System-RNS). How to get Wireshark to see usbmon0? ls -l /dev/usbmon* showsĬrw-r–r- 1 root root 248, 0 Jan 10 14:50 /dev/usbmon0Ĭrw-r–r- 1 root root 248, 1 Jan 10 14:50 /dev/usbmon1Ĭrw-r–r- 1 root root 248, 2 Jan 10 14:50 /dev/usbmon2

That having been said, would you please help me sort this out: To save time, does anyone know of a Wireshark forum? I found their wiki, but Google does not reveal a robust forum such as this where you can ask questions.

Wireshark usb capture