andersen73 Posted February 20, 2018 Share Posted February 20, 2018 The Packet Squirrel is EXACTLY what we need to passive collect in-line traffic, but time drift is causing end to end packet analysis near impossible. I've installed NTP on the PS and have received timing via the network, but we have to always assume that we'll never reach an NTP server. The systems that collect the network streams also don't have NTP inside them, so we can't do any Wireshark time adjustments. Our only method to receive sub-millisecond precision is to use a USB-to-serial GPS device (based on cost). In the past, we've used GPS via USB Serial (Raspberry Pi) to timestamp packets collected successfully. We now wanted to leverage that same concept on the PS, but are not able to read serial NMEA streams? Do we need a custom firmware build to access usb-to-serial streams? Quote Link to comment Share on other sites More sharing options...
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