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Prove every audit · OT and on-premise compliance

Pass every audit, OT and on-premise. The evidence builds itself.

Trout Access Gate is an on-premise appliance that produces compliance evidence for OT and on-premise IT systems. It turns machines and servers you cannot patch or put an agent on into documented access, identity and audit records, mapped to the frameworks your auditor checks.

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Access Gate generating a compliance assessment report
In short

Access Gate turns everyday operation into compliance evidence.

It sees the whole network, OT and on-premise IT, keeps a live inventory of machines and servers and records every session by person. So the visibility, inventory, encryption and proof of access that frameworks demand come from one system. You export them on demand.

Prove every audit.

Four kinds of evidence, one system.

Most teams stitch compliance together from separate tools. Access Gate produces the evidence for your OT and on-premise systems in one place, so it stays consistent and current.

See the whole network.

Passive visibility finds every machine, server and user on your network, OT and IT. No scanning, no production impact.

Keep a live inventory.

Every machine and server listed, with the history of what changed and when. That list is the first evidence an auditor asks for.

Prove who reached what.

Every session is tied to a person and recorded: who reached which machine or server, when, and what they did. Kept on site.

Export evidence on demand.

Generate the reports and evidence packs an assessor asks for, without assembling them by hand.

One record, three uses

Each access is recorded once and reused.

When a person reaches a machine or a server, Access Gate records who, which system and when. The same record feeds your SIEM, the auditor's report and your framework evidence.

Diagram: one access event recorded by Access Gate (who, which machine, when) feeding three uses: the audit log sent to your SIEM over syslog, a PDF assessment report for the auditor, and evidence for framework controls.
01

Audit log.

Each access goes to your SIEM over syslog as it happens, and stays in the enclave history.

Log forwarding guide
02

Assessment report.

Run an assessment for a site. Controls Access Gate enforces are filled from live data, then exported as a PDF.

Assessment report guide
03

Framework evidence.

The same record answers the access control and audit controls of CMMC, NERC CIP and IEC 62443.

CMMC compliance
How it compares

One system replaces a stack of point tools.

CapabilitySpreadsheets + point toolsAccess Gate
Asset inventoryManual spreadsheet, stale the day it is builtContinuous, updated from live traffic
Network visibilityPeriodic scans with blind spotsPassive and always-on, no scanning
Proof of accessShared accounts, no attributionIdentity-bound, per person, recorded
Audit evidenceAssembled by hand for each assessmentExported on demand
Where the data livesScattered across tools and SaaSOne system, on-premise
Framework coverageA different tool per frameworkOne evidence set maps to CMMC, NERC CIP, IEC 62443
FAQ

Questions about OT and on-premise compliance.

It watches the network passively to build visibility and a live inventory, and it brokers every session so each access is identity-bound and recorded. Compliance evidence is a by-product of running the system. You export it on demand.

No. It produces the technical evidence frameworks require for your OT and on-premise systems: visibility, inventory and proof of access. Then it exports it. It feeds your GRC or audit process rather than replacing it.

The same underlying evidence maps across CMMC, NERC CIP, and IEC 62443, because they ask similar questions: what is on the network, who can reach it, and can you prove it. The dedicated pages show the row-by-row mapping.

No. Discovery is passive and agentless, and the evidence is produced and stored on-premise. There is no dependency on an external service.