Supported Industrial Protocols and Asset Discovery

OTserver combines Layer 2 discovery with fixed, read-only identity queries. Each guide below documents the request the scanner sends, the evidence it accepts, the default transport, and the safety boundary implemented in the scanner source code.

ARP and PROFINET DCP establish normalized MAC identities for most probes. SNMP also checks every configured IPv4 target and can establish an asset only when interface, bridge, or LLDP evidence supplies a valid MAC. Protocol observations enrich that MAC-identified asset instead of creating records from changeable IP addresses or device names.