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Nozomi Networks · Security Appliances

Nozomi Networks Guardian

Passive OT asset discovery, network visualisation and threat detection appliance.

Where it fits

Passive monitoring off a SPAN port, so it builds a live asset inventory and network map without sending a single packet into the control network. For most plants this is the first honest answer to what is actually connected, and it usually surprises people. Detection covers both known ICS threats and behavioural anomalies.

Technical specifications

DeploymentPhysical appliance, VM or container
Traffic captureSPAN port or network TAP
Protocol coverageModbus, DNP3, S7, EtherNet/IP, IEC 61850, others
Asset inventoryAutomatic discovery, firmware and version tracking
Vulnerability matchingCVE correlation against discovered assets
DetectionICS threat signatures plus behavioural baselining
IntegrationSIEM, syslog, REST API, firewall enforcement
Central managementVantage or CMC for multi-site

Specifications are indicative and subject to variant. The manufacturer datasheet governs in all cases — ask us for the current revision against your part number.

Supported protocols

  • Modbus TCP
  • PROFINET
  • EtherNet/IP
  • OPC UA

Certifications

  • IEC-62443

Documentation

Datasheets, dimensional drawings, wiring schematics and declaration certificates are issued on request against your specific part number and variant. Request documentation.

Commonly specified alongside

Accessories and companion equipment that usually appear on the same bill of materials.

Claroty

OT threat detection with deep protocol inspection, asset inventory and secure remote access.

Inspection
Deep packet inspection of ICS protocols
Coverage
Asset inventory, vulnerabilities, detection
Access
Integrated secure remote access
4-6 weeksIEC-62443
View details
Kyland

Layer 3 managed industrial switch with sub-20 ms ring recovery and VLAN segmentation.

Ports
24 x GE + 4 x 10GE uplink
Ring recovery
Under 20 ms
Security
VLAN, 802.1X, ACL, RADIUS
2-3 weeksCEULIEC-62443
View details