Continuous Asset Inventory Without Scanning
As your OT footprint expands, unknown assets pile up. Dynamic asset inventories across IT and OT environments, continuously fed by network visibility and integrated with your access control fabric.
Trusted by leading companies
| Asset | Location | Enclaves | Services | Level |
|---|---|---|---|---|
| Code Repo | 172.31.112.16 | Code Repo Enclave | ssh:22 tcp:443 http:80 | Important |
| CUI Server | 172.31.112.12 | CUI Server Enclave | tcp:3690 tcp:443 | Standard |
| Quality Scanning | 172.31.115.244 | - | http:443 | Important |
| CNC Bella | 172.31.112.39 | Bella Enclave | ssh:22 tcp:443 modbus:502 http:80 | Critical |
The asset inventory is the control everything else depends on.
Segmentation, access control, patching, incident response, and audit all assume an accurate inventory. Yet in most OT environments that inventory is a spreadsheet that was out of date the moment it was saved, maintained by hand and trusted by no one.
Building it the IT way does not work on the plant floor. Active scanners that interrogate devices can crash sensitive PLCs and RTUs, and agents cannot be installed on the proprietary controllers, HMIs, and sensors that make up the estate.
Build and Maintain an Accurate Asset Inventory
Stop treating asset management as a periodic project. The Trout Access Gate turns it into a continuous, automatic process. Compliance documentation built in.
Instant Inventory Generation
Create a live asset list directly from observed traffic.
Continuous Monitoring
Detect new or changed devices as the network evolves.
Operational Contextualization
Associate assets with functions and processes.
No Manual Reconciliation
Eliminate spreadsheets and periodic audit cycles.
Compliance-Aligned Structure
Supports NIS2, CMMC, and IEC asset identification needs.
Always Up-to-Date Records
Inventory reflects reality, not last quarter's scan.
An accurate inventory in the first week, kept live after.
Discover, passively.
Point existing network telemetry at Access Gate and it begins populating the inventory immediately, surfacing devices that traditional tools miss, including shadow IT and legacy OT that cannot run an agent. Within the first week you have a complete, classified picture, built without sending a probe or installing anything.
Keep it current and put it to work.
The inventory stays live off network behaviour and becomes the basis for the rest: CMMC scope boundaries, zone-and-conduit segmentation, and identity-based access policy all build on the same authoritative asset list, instead of a separate discovery effort each time.
NIST 800-171 CM, CMMC scoping, NIS2, and IEC 62443.
A live inventory is direct evidence for the controls auditors check first: NIST 800-171 Configuration Management (CM) asset identification and tracking required for CMMC, NIS2 Article 21 asset identification and risk management, and the IEC 62443 requirement to know the assets in each zone. For CMMC, the inventory flags assets that handle CUI and identifies Specialized Assets, giving assessors an evidence-backed scope instead of manual assumptions.
The records export on demand in CSV or JSON and map straight to those control families, and a REST API keeps a CMDB or SIEM in sync. Asset identification becomes continuous evidence drawn from live data, not a document rebuilt before each assessment.
Access Gate secures your assets first, then exposes the simple services your teams and vendors actually want, so they run through the sanctioned path, not around it.
OT runs through you, not around you.
Questions and Answers
Devices discovered on average in the first week of deployment, including shadow IT and legacy OT equipment invisible to traditional tools.
The Access Gate continuously monitors network telemetry. When a new device connects, it appears in the inventory within minutes. When a device disconnects or changes configuration, the record updates automatically. There's no scheduled scan or manual refresh.
Yes. The Access Gate identifies devices from their network behavior, protocols used, traffic patterns, and communication partners. This works for PLCs, HMIs, SCADA systems, IoT sensors, and proprietary industrial equipment that can't run agents.
The inventory automatically flags assets that handle CUI and identifies Specialized Assets (SPAs) based on their network role and communications. This gives assessors a clear, evidence-backed scope boundary instead of manual assumptions.
Yes. The inventory can be exported on demand in CSV or JSON format. It maps directly to NIST 800-171 CM controls, so auditors can verify asset identification, classification, and tracking requirements against live data.
It can complement or replace it. The Access Gate provides a REST API for pushing inventory data into ServiceNow, Splunk, or any CMDB. Many customers use it as the authoritative source for network-connected assets and sync to their CMDB for broader IT asset management.
Access Gate identifies devices from network telemetry, their protocols, traffic patterns, and communication partners, rather than probing them. That is why it can classify PLCs, HMIs, SCADA, IoT sensors, and proprietary industrial equipment that cannot run agents or answer SNMP, and why it can run on a control network without the risk active scanning creates.
Download the Access Gate Datasheet.
Get the complete product overview with technical capabilities, deployment model, compliance alignment, and customer references.
What's Inside
Product architecture, deployment model, key capabilities (proxy enforcement, micro-DMZs, identity-based access), compliance alignment, and real-world customer deployments.
See It in Action
Request a live demo to see how the Access Gate deploys on your network without rewiring or downtime.