Description

Features:

capture ethernet packets without intrusion (preamble, SFD, and FCS are all left intact)
capture non-ethernet packets
detect direction
detect CRC validity
count inter-frame gaps
inject packets
disrupt packets
measure latency
PoE passthrough
accessed through userspace, no kernel device driver needed
can be directly accessed from Wireshark
can be accessed and controlled by command line interface
open source host software
compact and portable, USB-powered solution
The device is powered and accessed through USB 3.0. Installing the device will not destabilize your system. In particular, the device is not exposed as network device. This has the advantage that your OS will not mess with it.