To fix this configure the policy value for
Computer Configuration
|_ Administrative Templates
|_ MSS (Legacy)
|_ MSS: (EnableICMPRedirect)
|_ Allow ICMP redirects to override OSPF generated routes to "Disabled".

This policy setting requires the installation of the MSS-Legacy custom template. "MSS-Legacy.admx" and " MSS-Legacy.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively. Files are available at EventSentry GitHub Repository at: https://github.com/eventsentry/resources

STIG: Server
2022: https://system32.eventsentry.com/stig/viewer/V-254337
2019: https://system32.eventsentry.com/stig/viewer/V-205860
2016: https://system32.eventsentry.com/stig/viewer/V-224918

Desktop
W11: https://system32.eventsentry.com/stig/viewer/V-205860
W10: https://system32.eventsentry.com/stig/viewer/V-220797

NIST 800-53 : CM-6, CM-7, SC-5, SI-4
NIST 800-171: 3.4.6, 3.13.1
CMMC v2.0 L2: CM.L2-3.4.6, SC.L2-3.13.1
PCI-DSS v4.0: 2.2.1
HIPAA SR : §164.312(e)(1)
HIPAA HICP : Practice 6 (Network Management)