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When running as part of your Zeek installation this plugin will produce three log files containing metadata extracted from any Ethernet/IP (ENIP) and Common Industrial Protocol (CIP) traffic observed on UDP port 2222 and port 44818 TCP/UDP. Ethernet/IP and CIP are often observed together. cip.log and enip.log contain metadata from their respective protocols while enip_list_identity.log contains addtional data extracted from specific ENIP messages relating to device identity.

zeek-plugin-enip is distributed as a Zeek package and is compatible with the zkg command line tool.

This code is made available under the BSD-3-Clause license. Guidelines for contributing are available as well as a pull request template. A Dockerfile has been included in the repository to assist with setting up an environment for testing any changes to the plugin.

• Earlier work on CIP and ENIP by SCy-Phy