So, somewhat bizarrely, I can't be certain what version I'm running, as the information I have is contradictory.ĭoes Help About correctly identify Wireshark's version? If so, then it looks to me as if the removal process didn't work properly (and I would appreciate some pointers about removing it completely). However, Help About Wireshark still says version 1.12.8, and the truncation issue when capturing from usbmon remains.
Download wireshark 2.0 install#
I did have a folder named Wireshark 1.12.8, which I have deleted.Īnyway, within the last few minutes I've attempted to remove Wireshark via apt-get, then install the current dev one (2.2.0 something) via apt-get.
Download wireshark 2.0 download#
I must have installed it from a download from the Wireshark downloads site. I didn't compile it myself, and it isn't part of the Ubuntu distribution. Dash suggested it was the current stable version (2.0.2 something - this is Ubuntu 16.04), but Wireshark's Help About Wireshark said 1.12.8 (Git Rev Unknown from unknown). Just to be sure, can you capture some USB traffic using tcpdump -i usbmon -s 0 -w tcpdump_usb_test.pcap, press Ctrl-C when done, and then check whether the USBs in this file ( tcpdump_usb_test.pcap) are also truncated if you open it using Wireshark?īut the difference in behaviour between tcpdump and Wireshark makes me wonder what version of Wireshark you are running? Have you compiled it from source, or has it come with your Ubuntu distribution? Is this a correct understanding or it is just that some URBs from the keyboard are smaller than 48 bytes and thus are not truncated?
But what you just wrote sounds to me as if only some of the URBs are truncated ("the traffic from a keyboard is sometimes truncated") and some are not even though larger than 48 bytes. Well, my question was related to the type of transfers (isochronous, interrupt, bulk, control) which are affected.
Download wireshark 2.0 Bluetooth#
You do not use tcpdump at all.Įven the traffic from a keyboard is sometimes truncated, but the real killer is traffic with a Bluetooth dongle, where packets frequently are in the region of 256 bytes.
Libpcap is 1.7.4, tcpdump is 4.7.4, but I am not aware of how what I'm doing interacts with either of them.Īs you start the capture from Wireshark, you use libpcap via dumpcap which is a process that Wireshark spawns for the actual capturing and reads its output.
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