NIST 800-53 REV 5 • IDENTIFICATION AND AUTHENTICATION
IA-3(3) — Dynamic Address Allocation
Where addresses are allocated dynamically, standardize dynamic address allocation lease information and the lease duration assigned to devices in accordance with {{ insert: param, ia-3.3_prm_1 }} ; and Audit lease information when assigned to a device.
CMMC Practice Mapping
No direct CMMC mapping
NIST 800-171 Mapping
No direct NIST 800-171 mapping
Related Controls
Supplemental Guidance
The Dynamic Host Configuration Protocol (DHCP) is an example of a means by which clients can dynamically receive network address assignments.
Practitioner Notes
This enhancement requires dynamic allocation of network addresses to be tied to device identity — tracking which device got which IP address from DHCP.
Example 1: Configure your DHCP server to log MAC address-to-IP address assignments and integrate with your NAC solution so allocated addresses are traceable to authenticated devices.
Example 2: Use DHCP reservations for critical servers and network devices so their IP addresses are always mapped to their known MAC addresses in your asset inventory.