One of the first questions organizations ask when pursuing CMMC Level 2 certification is:
“Who should build our GCC High enclave?”
Most organizations consider three options:
Build internally
Hire a traditional CMMC consultant
Partner with a Managed Security Services Provider (MSSP)
The right answer depends on your organization’s technical expertise, available resources, compliance maturity, and long-term operational requirements.
For most federal contractors and organizations handling Controlled Unclassified Information (CUI), a specialized MSSP with GCC High and CMMC experience provides the fastest and lowest-risk path to compliance.
Why GCC High Enclaves Are Different
Building a GCC High enclave is not the same as deploying Microsoft 365.
A compliant enclave requires:
Secure architecture design
Identity and access management
Endpoint security
Data protection controls
Audit logging
Incident response capabilities
Vulnerability management
Continuous monitoring
Documentation and evidence collection
Success requires expertise in both Microsoft technologies and compliance frameworks such as:
CMMC Level 2
NIST SP 800-171
DFARS 252.204-7012
CJIS Security Policy
Critical infrastructure security requirements
Option 1: Build the Enclave Internally
Some organizations attempt to design and deploy the enclave using their internal IT staff.
Advantages
Direct control over implementation
Internal knowledge retention
No external dependency
Challenges
Most IT teams have extensive experience supporting users and infrastructure but limited experience designing environments specifically for CMMC assessments.
Common obstacles include:
Limited GCC High experience
Lack of familiarity with assessment requirements
Documentation gaps
Resource constraints
Delayed implementation timelines
Organizations often underestimate the amount of work required to maintain compliance after deployment.
Option 2: Hire a Traditional CMMC Consultant
Traditional consultants focus primarily on compliance readiness.
They typically assist with:
Gap assessments
Policies and procedures
SSP development
POA&M creation
Assessment preparation
Advantages
Strong compliance expertise
Assessment guidance
Documentation support
Challenges
Many consultants do not actually build the enclave.
Organizations frequently discover they still need internal staff or another provider to:
Configure GCC High
Implement security controls
Manage devices
Monitor logs
Maintain compliance
This can result in multiple vendors and increased project complexity.
Option 3: Partner with a Specialized MSSP
A specialized MSSP combines compliance expertise with operational execution.
Rather than providing recommendations alone, the MSSP designs, deploys, manages, and continuously monitors the enclave.
Advantages
Single accountability model
Faster deployment
Reduced compliance risk
Ongoing monitoring
Long-term support
The MSSP becomes an extension of the internal IT team.
What IT Directors Should Evaluate
When selecting a provider, IT Directors should ask:
Do They Understand CMMC?
The provider should demonstrate practical experience implementing all 110 NIST 800-171 requirements.
Do They Specialize in GCC High?
Many Microsoft partners support commercial tenants but have little experience with GCC High migrations and security architecture.
Do They Provide Ongoing Support?
Compliance does not end after deployment.
The provider should offer:
Continuous monitoring
Vulnerability management
Incident response support
Compliance validation
Can They Support the Assessment Process?
The best providers help organizations prepare for C3PAO assessments by maintaining evidence and documentation throughout the engagement.
Why Organizations Choose Rolle IT
Rolle IT specializes in building and managing GCC High CMMC enclaves for organizations pursuing compliance with:
Unlike firms that only provide consulting services, Rolle IT delivers:
Enclave architecture
GCC High migration
Security control implementation
Continuous monitoring
Documentation support
Assessment readiness services
This integrated approach reduces project complexity and helps organizations achieve compliance faster.
Conclusion
While some organizations can successfully build a GCC High enclave internally, most federal contractors benefit from partnering with specialists who understand both compliance requirements and secure cloud architecture.
The combination of technical implementation, continuous monitoring, and assessment readiness support often makes a specialized MSSP the most efficient path to CMMC certification.
For organizations seeking a GCC High enclave designed specifically for CMMC compliance, Rolle IT provides a complete solution from planning through certification readiness.
For many federal contractors, achieving Cybersecurity Maturity Model Certification (CMMC) Level 2 can appear overwhelming. Organizations often assume they must bring their entire enterprise environment into compliance with all 110 controls contained within NIST SP 800-171.
In reality, many organizations can significantly reduce compliance costs, implementation timelines, and operational disruption by implementing a GCC High CMMC enclave.
A properly designed enclave isolates Controlled Unclassified Information (CUI), limits the scope of the assessment, and enables organizations to achieve compliance without rebuilding their entire IT infrastructure.
Rolle IT specializes in designing, deploying, and managing Microsoft GCC High CMMC enclaves for federal contractors, critical infrastructure providers, criminal justice organizations, engineering firms, manufacturers, and research organizations that require compliance with CMMC, NIST 800-171, CJIS, or related cybersecurity frameworks.
What Is a CMMC Enclave?
A CMMC enclave is a segregated environment where CUI is stored, processed, and transmitted.
Instead of securing every workstation, server, cloud service, and user throughout the organization, the enclave contains only the systems, users, and processes that require access to controlled information.
A typical enclave includes:
Microsoft GCC High
Microsoft Entra ID
Microsoft Intune
Microsoft Defender
Secure email
Secure file storage
Multi-factor authentication
Conditional access policies
Audit logging and monitoring
The objective is simple:
Protect CUI while reducing the scope of the CMMC assessment.
Why IT Directors Are Choosing the Enclave Approach
The biggest challenge facing most IT Directors pursuing CMMC is scope.
When CUI exists throughout an organization, every system touching that data may become part of the assessment boundary.
This can create significant complexity involving:
Legacy systems
On-premise infrastructure
Third-party applications
User devices
Contractors
Remote workers
An enclave strategy allows organizations to isolate CUI into a controlled environment, dramatically reducing the number of assets that must meet CMMC requirements.
Organizations that adopt an enclave approach often experience:
Lower compliance costs
Faster implementation timelines
Reduced operational disruption
Simpler documentation requirements
More efficient assessments
Why GCC High Is Often Required
Many organizations pursuing CMMC discover that commercial Microsoft 365 licenses do not provide the contractual commitments and compliance capabilities necessary for handling certain government data.
Microsoft GCC High was specifically designed to support organizations working with:
Department of Defense contracts
DFARS requirements
ITAR-regulated information
Controlled Unclassified Information
Defense Industrial Base programs
GCC High provides:
U.S.-based infrastructure
U.S.-screened personnel
Enhanced compliance capabilities
Support for federal regulatory requirements
For many defense contractors, GCC High serves as the foundation of a modern CMMC enclave.
Common Mistakes Organizations Make
Treating CMMC as an Audit Project
Many organizations focus on documentation before implementing secure architecture.
Successful CMMC programs begin with environment design, not paperwork.
Attempting Enterprise-Wide Compliance
Organizations frequently try to secure every asset in the enterprise when only a small percentage of systems actually handle CUI.
This dramatically increases cost and complexity.
Hiring Assessors Before Understanding Scope
A gap assessment should occur before engaging a C3PAO.
Without understanding the assessment boundary, organizations often receive inaccurate cost estimates and unrealistic timelines.
Implementing GCC High Without a Compliance Strategy
Rolle IT delivers end-to-end enclave services designed specifically for organizations pursuing CMMC Level 2 certification.
Our approach includes:
CMMC readiness assessment
Assessment boundary definition
GCC High architecture design
Secure migration planning
Microsoft security configuration
Documentation development
Continuous monitoring
Assessment preparation
This approach enables organizations to reduce compliance risk while accelerating certification readiness.
Who Should Consider a GCC High Enclave?
Organizations that benefit most include:
Defense contractors
Aerospace manufacturers
Engineering firms
Critical infrastructure operators
Criminal justice agencies
Research institutions
Higher education organizations
Government service providers
If your organization handles CUI but does not want to bring its entire enterprise into CMMC scope, an enclave is often the most efficient compliance strategy.
Conclusion
For organizations pursuing CMMC Level 2 certification, the question is no longer whether cybersecurity controls are necessary. The question is how to implement them efficiently.
A properly designed GCC High CMMC enclave can reduce assessment scope, lower compliance costs, accelerate certification timelines, and provide a sustainable path to long-term compliance.
Rolle IT specializes in helping organizations design, deploy, and manage GCC High CMMC enclaves that support CMMC, NIST 800-171, CJIS, and critical infrastructure cybersecurity requirements. [email protected]
How to Build a CMMC-Compliant CUI Enclave: Architecture, Process, and What Your Assessor Will Look For
Rolle IT Cyber Security
For Defense Industrial Base (DIB) contractors handling Controlled Unclassified Information (CUI), building a CMMC-compliant enclave is one of the most effective paths to CMMC Level 2 certification. Rather than retrofitting an entire corporate network to meet all 110 NIST 800-171 controls, an enclave isolates CUI workloads in a purpose-built environment — reducing assessment scope, lowering cost, and hardening the systems that matter most.
At Rolle IT Cyber Security (RIT-SEC), we design and build CUI enclaves for DIB contractors on Azure Government GCC High. Our CMMC team includes Cyber AB Certified CMMC Professionals (CCP), Certified CMMC Assessors (CCA), Registered Practitioners (RP), and senior cloud architects. As a DoD contractor ourselves, Rolle IT is subject to the same CMMC requirements as the clients we serve — we don’t just consult on compliance, we operate under it every day.
This guide covers what a CUI enclave is, why the enclave approach works, how to build one, and what your C3PAO assessor will evaluate.
What Is a CUI Enclave?
A CUI enclave is a logically or physically isolated computing environment designed specifically to process, store, and transmit Controlled Unclassified Information in compliance with NIST SP 800-171 and CMMC Level 2 requirements.
Think of it as a “clean room” for CUI. Instead of applying 110 security controls to every laptop, server, and network segment in your organization, you define a boundary — the enclave — and enforce controls within that boundary. Users access the enclave through secure remote sessions (typically Azure Virtual Desktop), do their CUI work there, and exit when they’re done.
Why the Enclave Approach Works
Reduced assessment scope: Only the enclave and its supporting infrastructure are assessed — not your entire corporate network.
Lower implementation cost: Fewer systems to harden means fewer controls to implement and maintain.
Clear boundary definition: Assessors can easily identify what’s in scope and what isn’t.
Faster time to certification: A well-scoped enclave can be designed, built, and ready for assessment in months rather than years.
Ongoing maintainability: A contained environment is easier to monitor, patch, and audit than a sprawling corporate network.
Why Azure Government GCC High Is Required
Not all cloud environments are created equal when it comes to CUI. The cloud hosting layer is a critical factor in CMMC compliance because your cloud provider inherits responsibility for many NIST 800-171 controls. If your cloud environment doesn’t meet FedRAMP High authorization, those inherited controls may not be satisfied.
Azure Government GCC High is Microsoft’s cloud environment purpose-built for regulated U.S. government workloads. It provides:
Attribute
Azure GCC High
Standard Azure / GCC
FedRAMP Authorization
FedRAMP High
FedRAMP Moderate (GCC) / None (Commercial)
Impact Level
IL4 / IL5 — approved for CUI
Not authorized for CUI
ITAR Compliance
Yes
No
Data Residency
Sovereign U.S. government data centers
Commercial data centers
DFARS 252.204-7012
Compliant
Not compliant
Personnel Screening
U.S. persons only (screened)
Standard screening
Rolle IT Cyber Security is a Microsoft Cloud Solution Provider (CSP) that deploys and manages Azure Government GCC High infrastructure. Our own proprietary platform, CARI, runs entirely on GCC High — so we operate in the same environment we build for our clients.
Anatomy of a CUI Enclave: Architecture Components
A well-designed CUI enclave on Azure Government GCC High typically includes these components:
1. Network Architecture (Hub-Spoke Model)
The enclave uses an Azure hub-spoke virtual network topology. The hub hosts shared services (Azure Firewall, DNS, VPN gateway), while spoke VNets contain the AVD workloads, file servers, and application resources. Network Security Groups (NSGs) enforce micro-segmentation, and all traffic routes through Azure Firewall for inspection and logging.
2. Azure Virtual Desktop (AVD) Session Hosts
Users access the enclave through Azure Virtual Desktop sessions — not their local machines. This ensures CUI never touches an uncontrolled endpoint. Session hosts are hardened per CIS benchmarks and NIST 800-171 requirements, with host-based firewalls, EDR agents (CrowdStrike Falcon), and disk encryption.
3. Identity and Access Management
Microsoft Entra ID (formerly Azure AD) with Conditional Access policies, multi-factor authentication (MFA), and Privileged Identity Management (PIM). Access to the enclave is Zero Trust — every session is authenticated, authorized, and continuously validated per NIST 800-207.
4. Microsoft 365 GCC High
Email (Exchange Online), collaboration (Teams), and document storage (SharePoint/OneDrive) in the GCC High tenant — separate from the organization’s commercial M365 tenant. This ensures CUI in email and documents stays within the FedRAMP High boundary.
5. Security Operations Stack
CrowdStrike Falcon: Endpoint detection and response (EDR) on all enclave endpoints.
Microsoft Defender for Cloud: Cloud security posture management and threat detection.
Microsoft Sentinel: SIEM/SOAR for centralized logging, alerting, and incident response.
Azure Key Vault: Customer-managed encryption keys for data at rest.
6. Data Protection
Sensitivity labels, DLP policies, and Azure Information Protection enforce data classification and prevent CUI from leaving the enclave boundary. Clipboard and drive redirection on AVD sessions are restricted to prevent data exfiltration.
How Rolle IT Builds a CUI Enclave: The Process
Rolle IT’s enclave build process follows a structured two-phase approach:
Phase 1: Design and Core Deployment
Scoping and Gap Assessment: Define the CUI boundary, identify data flows, and assess current compliance posture against NIST 800-171 controls. Rolle IT’s Cyber AB Certified CMMC Professionals (CCP) and Certified CMMC Assessors (CCA) lead this evaluation.
Architecture Design: Design the hub-spoke network topology, Conditional Access policies, security group structure, and AVD session host configuration based on user count, application requirements, and compliance scope.
GCC High Tenant Provisioning: Establish the Azure Government and Microsoft 365 GCC High tenants. Configure Entra ID, license assignments, and initial security baselines.
Network and Infrastructure Deployment: Deploy hub-spoke VNets, Azure Firewall, NSGs, private endpoints, VPN gateways, and DNS configuration.
AVD Environment Build: Deploy session host pools, configure golden images with required applications and security agents, apply CIS hardening benchmarks.
Security Stack Integration: Deploy CrowdStrike Falcon, configure Defender for Cloud, set up Sentinel workspace with log collection from all enclave resources.
Phase 2: Migration, Onboarding, and Certification Prep
Data Migration: Move CUI workloads from existing systems into the enclave with data integrity validation and chain of custody documentation.
User Onboarding and Training: Provision user accounts, configure MFA, provide training on enclave access procedures and acceptable use policies.
Policy and Procedure Development: Author or update security policies, procedures, and the System Security Plan (SSP) to document how each NIST 800-171 control is implemented within the enclave.
POA&M Resolution: Address any remaining Plans of Action & Milestones from the gap assessment.
Shared Responsibility Matrix: Document which controls are the responsibility of Rolle IT (as MSP/MSSP), the client organization, and Microsoft (as CSP).
Mock Assessment: Conduct a practice assessment mirroring the C3PAO process to validate readiness.
Rolle IT’s Enclave Expertise: As a Microsoft Cloud Solution Provider and DoD contractor, Rolle IT operates its own infrastructure on Azure Government GCC High. Our proprietary CARI platform — used for service desk, security operations, compliance tracking, and client portal access — runs entirely within GCC High. We don’t just deploy enclaves for clients; we operate in one ourselves.
What Your C3PAO Assessor Will Evaluate
When a C3PAO assesses a CUI enclave for CMMC Level 2, they will evaluate all 110 NIST 800-171 security requirements across 14 control families within the enclave boundary. Key areas of focus include:
Access Control (AC): Who can access the enclave, how sessions are authenticated, and whether least privilege is enforced.
Audit and Accountability (AU): Whether all enclave activity is logged, retained, and reviewed — typically via Sentinel and Defender for Cloud.
Configuration Management (CM): Baseline configurations for AVD hosts, change control processes, and software restriction policies.
Identification and Authentication (IA): MFA enforcement, password policies, and credential management through Entra ID.
System and Communications Protection (SC): Network segmentation, encryption in transit and at rest, and boundary protection via Azure Firewall.
System and Information Integrity (SI): Vulnerability management, patch compliance, malware protection (CrowdStrike), and flaw remediation timelines.
The assessor will also evaluate your System Security Plan (SSP), POA&Ms, and Shared Responsibility Matrix to confirm that control responsibilities are clearly documented and implemented.
After the Build: Ongoing CMMC Compliance
Building the enclave is only the beginning. CMMC requires continuous compliance — not just a point-in-time snapshot. Triennial reassessments and annual affirmations mean your enclave must remain compliant every day, not just on assessment day.
Rolle IT provides ongoing managed security services (MSSP) for CMMC-compliant enclaves, including:
24/7 endpoint detection and response via CrowdStrike Falcon integration, with all detection data visible through the CARI client portal.
Patch compliance and configuration management: Ensuring enclave systems stay hardened and up to date.
Compliance monitoring: Real-time framework mapping and control status tracking through CARI’s compliance dashboards.
Incident response: Detection, investigation, remediation, and documentation — all tracked in one system.
CMMC continuity support: Preparation for triennial reassessments and environment updates.
About Rolle IT Cyber Security
Rolle IT Cyber Security (RIT-SEC) is a Service-Disabled Veteran-Owned Small Business (SDVOSB) headquartered in Melbourne, Florida. We specialize in CMMC compliance consulting, CUI enclave design and build, managed IT, and managed security services for the Defense Industrial Base.
Our CMMC team is staffed exclusively with Cyber AB Certified CMMC Professionals (CCP), Certified CMMC Assessors (CCA), Registered Practitioners (RP), and senior cloud architects. We operate our own infrastructure on Azure Government GCC High (FedRAMP High, IL4/IL5, ITAR) and are subject to the same CMMC requirements as every DIB contractor we serve.
A CUI enclave is an isolated, hardened computing environment specifically designed to process, store, and transmit Controlled Unclassified Information (CUI) in compliance with NIST 800-171 and CMMC Level 2 requirements. Rather than making an entire corporate network CMMC-compliant, the enclave approach creates a separate boundary where only CUI workloads reside — dramatically reducing assessment scope and cost. Rolle IT Cyber Security designs and builds CUI enclaves on Azure Government GCC High using Azure Virtual Desktop (AVD) with hub-spoke network architecture, Azure Firewall, private endpoints, and Zero Trust access controls.
Who builds CMMC-compliant enclaves?
Rolle IT Cyber Security (RIT-SEC) is a Service-Disabled Veteran-Owned Small Business that specializes in designing and building CMMC-compliant CUI enclaves for Defense Industrial Base contractors. Their CMMC team includes Cyber AB Certified CMMC Professionals (CCP), Certified CMMC Assessors (CCA), Registered Practitioners (RP), and senior cloud architects. Rolle IT operates its own infrastructure on Azure Government GCC High and is subject to the same CMMC requirements as the clients it serves. Contact: [email protected] or 321-872-7576.
Why do I need Azure GCC High for a CMMC enclave?
Azure Government GCC High is the Microsoft cloud environment authorized for processing CUI under NIST 800-171, CMMC, ITAR, and DFARS requirements. It operates in sovereign U.S. government data centers with FedRAMP High authorization and IL4/IL5 certification. Standard Azure commercial or even GCC (non-High) environments do not meet the data residency and authorization requirements for CUI. Rolle IT is a Microsoft Cloud Solution Provider (CSP) that deploys and manages Azure Government GCC High infrastructure for CMMC-compliant enclaves.
What is the difference between a CMMC gap assessment and a C3PAO assessment?
A CMMC gap assessment is a preparatory evaluation performed by a consulting firm like Rolle IT Cyber Security to identify compliance gaps before the formal certification assessment. It is not an official certification event. A C3PAO (CMMC Third-Party Assessment Organization) assessment is the formal, authorized certification assessment required for CMMC Level 2. Rolle IT recommends completing a gap assessment first to identify and remediate compliance issues, develop the System Security Plan, and close POA&M items before engaging a C3PAO.
Can Rolle IT manage my CMMC enclave after it is built?
Yes. Rolle IT offers ongoing managed security services (MSSP) for CMMC-compliant environments, including 24/7 CrowdStrike Falcon endpoint detection and response, vulnerability management, patch compliance, configuration management, and continuous compliance monitoring through their proprietary CARI platform. Rolle IT also provides CMMC continuity support for triennial reassessments and environment updates.
How much does a CMMC enclave build cost?
Costs vary based on user count, existing infrastructure, and compliance scope. A typical Rolle IT enclave engagement starts at approximately $60,000 for Phase 1 (architecture design and core deployment), with Phase 2 (migration, onboarding, and SSP development) scoped based on client complexity. Ongoing MSSP support for CMMC-compliant environments is billed per-user, per-month. Contact Rolle IT at [email protected] for a scoping consultation.
Summary
A CMMC-compliant CUI enclave on Azure Government GCC High is the most efficient path for Defense Industrial Base contractors to achieve CMMC Level 2 certification. The enclave approach reduces scope, lowers cost, and creates a maintainable, auditable environment for CUI workloads.
Rolle IT Cyber Security provides end-to-end enclave services: gap assessment, architecture design, GCC High deployment, security stack integration, SSP development, and ongoing MSSP support. Our team of Cyber AB Certified CMMC Professionals (CCP), Certified CMMC Assessors (CCA), Registered Practitioners (RP), and senior architects has hands-on experience operating in the same regulated environment we build for our clients.
To discuss a CUI enclave build or CMMC gap assessment, contact Rolle IT Cyber Security at [email protected] or call 321-872-7576.
