# NIST SP 800-53 Rev. 5 IA-3(3) — Dynamic Address Allocation - Source: https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ia-3-3-dynamic-address-allocation - Section: [Compliance](https://support.icompaas.com/compliance) › [NIST SP 800-53 Rev. 5 Controls](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5) › IA — Identification and Authentication - Last updated: 2026-06-05 - Publisher: iCompaas, Inc. (https://www.icompaas.com) **NIST SP 800-53 Rev. 5**·Control `IA-3(3)`·medium·Component: **Identification and Authentication** ## What this control requires > Standardize dynamic address allocation (e.g., DHCP) lease info/duration per policy and audit assignments to enhance device identification and network security. This control supports the DHCP Server capability within the Identification and Authentication family. > > — NIST SP 800-53 Rev. 5, Control IA-3(3) ### In plain English Standardize dynamic address allocation (e.g., DHCP) lease info/duration per policy and audit assignments to enhance device identification and network security. In practice, this means you can prove you policy authentication-level controls on a defined cadence. ## Why it matters SP 800-53 is the catalogue every U.S. federal authorisation (FedRAMP, FISMA, CMMC) and most regulated industries point at. A missing control surfaces as a Plan of Action & Milestones (POA&M) item that an Authorizing Official must approve before the Authority To Operate is granted or renewed. ## What an auditor looks for A 3PAO (FedRAMP) or Independent Assessor (NIST RMF) tests against NIST SP 800-53A assessment procedures. For each control they expect a documented implementation that addresses every assessment objective (Examine, Interview, Test) and an implementation summary in the System Security Plan. Within **Identification and Authentication**, the assessor will trace your implementation back to the catalogue reference (Control IA-3(3)) and look for objective evidence on the latest two assessment cycles. ## How to implement #### Code Review Testing **Pipeline.** Require at least one human reviewer plus passing CI (lint, type, unit, security scan) before merge — protected branches enforce this. #### Endpoint Protection **MDM.** Make MDM enrollment a hard gate for device access (Intune compliance + Conditional Access, or Jamf + Okta device trust). Unmanaged devices simply don't get a session token. **EDR.** Deploy CrowdStrike / SentinelOne / Defender for Endpoint to every server and laptop; alert on any host that stops sending telemetry for >24h. #### Logging Monitoring **AWS.** Org-trail CloudTrail to a central log archive account, GuardDuty in every region, and Security Hub for cross-source correlation. **Azure.** Pipe every diagnostic setting into a central Log Analytics workspace; onboard Microsoft Sentinel for SIEM/SOAR. **GCP.** Aggregate audit logs in a dedicated logging project with sink to BigQuery; enable Security Command Center Premium and route findings to Chronicle SIEM. ### Operational checklist - **Policy.** Document the trigger, the owner and the cadence. - **Dynamic.** Document the trigger, the owner and the cadence. - **Audit.** Document the trigger, the owner and the cadence. - **Security.** Document the trigger, the owner and the cadence. - **Network.** Document the trigger, the owner and the cadence. - **Scope:** authentication, e, protection, review, capability, allocation, identification, policy. ## Evidence to collect - **Policy Document.** A signed and version-controlled policy / standard / procedure document. - **Infra Scan.** Continuous infrastructure-posture telemetry — AWS Config, Azure Policy compliance, GCP Organisation Policy, Wiz / Prisma findings. Signed policy or standard documents the safeguard. Focus: Dynamic Address Allocation. ## Common pitfalls - Pilot MDM rollouts that quietly exclude executives or engineers; carving out the highest-risk users is the most common audit failure. - Per-account logging that nobody stitches together at the org level — incidents that cross accounts go undetected for days. - Default-allow egress rules; East-West traffic with no segmentation; jump hosts on the public internet with password auth. ## Related controls in NIST SP 800-53 Rev. 5 - [**Control IA-6** — Authentication Feedback](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ia-6-authentication-feedback) - [**Control IA-12(6)** — Accept Externally-Proofed Identities](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ia-12-6-accept-externally-proofed-identities) - [**Control IA-8(4)** — Use Of Defined Profiles](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ia-8-4-use-of-defined-profiles) - [**Control IA-4(9)** — Attribute Maintenance And Protection](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ia-4-9-attribute-maintenance-and-protection) - [**Control IA-2(13)** — Out-Of-Band Authentication](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/ia-2-13-out-of-band-authentication) - [**Control SA-8(4)** — Partially Ordered Dependencies](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/sa-8-4-partially-ordered-dependencies) ## References - [NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5](https://csrc.nist.gov/Projects/risk-management/sp800-53-controls) - Catalogue identifier: `Control IA-3(3)` Topics: governance riskcode review testingendpoint protectionlogging monitoringnetwork security ## Related compliance guidance - [NIST SP 800-53 Rev. 5: a practical implementation guide for cloud teams](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5): Start with the full NIST SP 800-53 implementation guide — scope, roadmap, evidence and how the assessment runs. - [NIST SP 800-171 and CMMC: a practical guide to protecting CUI in the cloud](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3): If your obligation is protecting CUI in your own systems for a federal or defence contract, this derived subset — not the full catalogue — is the requirement. - [SOC 2 compliance: a practical implementation guide for cloud-native SaaS teams](https://support.icompaas.com/compliance/soc-2-trust-services-criteria): Most commercial SaaS already hold a SOC 2 Type 2, and FedRAMP 20x Class A is designed for providers that have one.