= LG bit: Globally unique address (factory default) Wireshark capture filters are written in libpcap filter language. Why is it different? Below are expanded dissections, perhaps someone could tell me how to craft the connection establishment so that the client will not RST immediately? Can it be that the client uses some primitive os fingerprint to cut off non-windows clients? That is, I send SYN but receive RST,ACK (whereas the captured terminal sends SYN and receives the normal SYN,ACK): When I tried echo -e 'LON\r' | nc 192.168.100.100 9004 under Linux (or just opening the connection via nc), the connection closes right away. I could also do this connection using telnet client under Windows (or puttty or ncat). There is initial connection establishment (as far as I see), then the client sends LON\r (laser on, presumably) and the sensor returns 5678\r (that is the value read from the bar code which is in the front of the sensor). I could talk to it with the provided (windows-only) app called AutoID Terminal and ontained wireshark dump of those 6 packets exchanged. The Ixia Packet Capture Module (PCM) provides built-in, single-UI packet capture and Wireshark decode monitoring. I have a barcode sensor (Keyence SR-2000) which is able to talk a simple plaintext-based protocol. Fast Mean Time To Repair When You Need It.
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