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Dynamic Host Configuration Protocol (DHCP) audit and event logs must record sufficient forensic data to be stored online for thirty days and offline for one year.


Overview

Finding ID Version Rule ID IA Controls Severity
V-251361 NET0198 SV-251361r809043_rule Medium
Description
In order to identify and combat IP address spoofing, it is highly recommended that the DHCP server logs MAC addresses and hostnames on the DHCP server, in addition to standard data such as IP address and date/time.
STIG Date
Network Infrastructure Policy Security Technical Implementation Guide 2021-11-22

Details

Check Text ( C-54796r808531_chk )
Verify the DHCP audit and event logs include hostnames and MAC addresses of all clients, in addition to IP address and date/time. Also, validate logs are kept online for thirty days and offline for one year.

If the logs do not include hostnames and MAC addresses along with the IP address and date/time, or if the logs are not kept online for thirty days and offline for one year, this is a finding.
Fix Text (F-54749r808532_fix)
Configure the DHCP audit and event logs to log hostname and MAC addresses, in addition to IP address and date/time.

Store the logs for a minimum of thirty days online and then offline for one year.