Implement subnetworks for publicly accessible components (DMZ)
System and Communications Protection · NIST SP 800-171 Rev 2
Requirement
Implement subnetworks for publicly accessible system components that are physically or logically separated from internal networks.
Discussion
Subnetworks that are physically or logically separated from internal networks are referred to as demilitarized zones (DMZs). DMZs are typically implemented with boundary control devices and techniques that include routers, gateways, firewalls, virtualization, or cloud-based technologies. [SP 800-41] provides guidance on firewalls and firewall policy. [SP 800-125B] provides guidance on security for virtualization technologies
How this affects your SPRS score
Under the DoD Assessment Methodology, a perfect SPRS score is 110. If this control is not met, 5 points is subtracted from your score.
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Estimate my SPRS score →Source: NIST SP 800-171 Rev 2 (public domain) · SPRS weighting per the DoD Assessment Methodology · This is reference information, not an official assessment.