CMMC 2.0 Level 2 & 3: Defense Industrial Base Firewall Requirements
Implementing Cybersecurity Maturity Model Certification (CMMC 2.0) Level 2 & 3 perimeter protection for safeguarding Controlled Unclassified Information (CUI).
Regulatory Context & Scope
CMMC 2.0 aligns defense contractors with NIST SP 800-171 to protect sensitive defense information against advanced persistent threats.
Key Required Network Controls
AC.L2-3.1.3: Control the flow of Controlled Unclassified Information (CUI) across interconnected security enclaves.
SC.L2-3.13.1: Monitor, control, and protect organizational communications at external system boundaries.
SC.L2-3.13.8: Prevent unauthorized and unintended information transfer via shared system resources.
FIPS 140-3 Validated Cryptography: Enforcing compliant cryptographic modules for all VPN tunneling and administrative consoles.
Technical Implementation Checklist
Position 4CGuard at external ingress/egress boundaries to enforce CMMC 2.0 access policies.
Isolate regulated database enclaves and sensitive endpoints into dedicated VLANs.
Inspect application payloads for threats while applying compliance bypasses for privacy.
Stream CEF/Syslog telemetry to SIEM to maintain 100% verifiable CMMC 2.0 compliance records.
CMMC 2.0 - Compliance FAQs
Common auditor, technical, and implementation questions.
4CGuard automates rule verification, enforces zero-trust access, encrypts data in transit, and exports audit logs mapped directly to CMMC 2.0 controls.
Evaluate 4CGuard on your network topology
Schedule an architectural walkthrough with a network security engineer. Review Layer 7 inspection rules, encrypted payload decapsulation, and Active Directory policy integration.