When you run Wireshark as non-root user, it will not be able to capture from those devices. Modern kernels (with the usbmon module loaded) also create a /dev/usbmonX device which is first probed for by Wireshark (actually, libpcap). Load it at boot via custom file in /etc/modprobe.d/ directory eg nf Thank you again for this excellent forum. We can proceed further with EtherNet over USB () once we have determined that Wireshark can read usbmon0 (ttyUSB0). Wireshark sees it as eth0 but there is zero traffic on it.
#Wireshark usb traffic serial
We have attempted using a USB connected EtherNet to USB adapter ((RS-232)_Adapter-USB-Ethernet_Adapter.html) with a Serial to Ethernet cable. Neither has any interesting traffic, certainly not the ASCII stream that we can see on the CLI.Ħ. Wireshark only shows usbmon1 and usbmon2. So others (user, wireshark group) should be able to read.ĥ.2 So indeed usbmon0 exists but it does not appear in Wireshark. says the special "usbmon0" interface receives events from all USB buses.ĥ.1 After a new modprobe usbmon after a reboot ls -l /dev/usbmon* returns 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).ĥ. 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.Ĥ. It is recognized by the laptop and connected to ttyUSB0. We have a Gigaware 2603487 USB-A to Serial Cable.
#Wireshark usb traffic software
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.ģ. 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.
#Wireshark usb traffic windows
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). That having been said, would you please help me sort this out:Ĭrw-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/usbmon2ġ. 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.