cisagov / ICSNPP

Industrial Control Systems Network Protocol Parsers

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Issue when trying to parse replayed traffic

Bob-The-User opened this issue Β· comments

πŸ› Summary

When I run a PCAP though the the Zeek command it parses the pcap and creates the logs as intended. However, when I use a packet replay tool to play the packets over a monitored interface it does not parse the pcap. I can see the PCAP on the interface with wireshark, and wireshark parses it correctly. I can also see the traffic in Conn.logs, but never get the parsed logs outputted. Zeek shows that the scripts loaded. I do not know if this is just a capability/functionality issue, or if this is an actual bug. It is also possible that it is specific to only replayed packets. I do not have actual live ICS traffic that I can monitor, so I need to make sure that it does in fact work at parsing live traffic.