narrowin/open/OT protocol explorer

OT Protocol Explorer

The OT and industrial protocols mapped to the OSI layers. Search by name, port or EtherType, filter by industry, and see at a glance what is routable, real-time or serial — and which have no native security.

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01 Protocols by layer & containment zone

Every protocol sits at the layer it really uses, and each band is also a containment zone: routable protocols ride TCP/IP and are cut at an L3 conduit; real-time ones run on Ethernet (Layer 2) and are held by VLAN; serial fieldbuses predate TCP/IP and are contained at the gateway. Search, filter by industry, or click a side bracket to solo a class. The panel carries each protocol's full segmentation profile.

Filter by industry

Next step This shows the boundary each protocol needs. Build the actual allow-list in the communication matrix.