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IA-3(3) IA · Identification and Authentication

Dynamic Address Allocation

LOW MODERATE HIGH
1 Overlay 1 Related Control
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Requirements NIST SOURCE

Discussion (NIST Supplemental Guidance)

The Dynamic Host Configuration Protocol (DHCP) is an example of a means by which clients can dynamically receive network address assignments.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for IA-3(3) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. lease information to be employed to standardize dynamic address allocation for devices is defined;
  2. lease duration to be employed to standardize dynamic address allocation for devices is defined;
  3. dynamic address allocation lease information assigned to devices where addresses are allocated dynamically are standardized in accordance with <IA-03(03)_ODP[01] lease information>;
  4. dynamic address allocation lease duration assigned to devices where addresses are allocated dynamically are standardized in accordance with <IA-03(03)_ODP[02] lease duration>;
  5. lease information is audited when assigned to a device.

Examine

[SELECT FROM: Identification and authentication policy; system security plan; procedures addressing device identification and authentication; system design documentation; system configuration settings and associated documentation; evidence of lease information and lease duration assigned to devices; device connection reports; system audit records; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with operational responsibilities for device identification and authentication; organizational personnel with information security responsibilities; system/network administrators; system developers].

Test

[SELECT FROM: Mechanisms supporting and/or implementing device identification and authentication capabilities; mechanisms supporting and/or implementing dynamic address allocation; mechanisms supporting and/or implanting auditing of lease information].

Overlays

Showing the OT/ICS overlay for the parent control IA-3 — see the IA-3(3) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Added (beyond standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for IA-3(3). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Identification and authentication policy
  • system security plan

Configuration

  • system design documentation
  • system configuration settings and associated documentation

Testing

  • Mechanisms supporting and/or implementing device identification and authentication capabilities
  • mechanisms supporting and/or implementing dynamic address allocation
  • mechanisms supporting and/or implanting auditing of lease information

Other Records

  • procedures addressing device identification and authentication
  • evidence of lease information and lease duration assigned to devices
  • device connection reports
  • system audit records
  • other relevant documents or records