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Network topology diagrams for the enclave must be maintained and up to date at all times.


Finding ID Version Rule ID IA Controls Severity
V-251353 NET0090 SV-251353r806014_rule Medium
To assist in the management, auditing, and security of the network infrastructure facility drawings and topology maps are a necessity. Topology maps are important because they show the overall layout of the network infrastructure and where devices are physically located. They also show the relationship and interconnectivity between devices and where possible intrusive attacks could take place. Having up to date network topology diagrams will also help show what the security, traffic, and physical impact of adding a new user(s) will be on the network.
Network Infrastructure Policy Security Technical Implementation Guide 2023-05-04


Check Text ( C-54788r806012_chk )
Validate the network diagram by correlating the information with all routers, multi-layer switches, and firewall configurations.

Validate all subnets have been documented accordingly.

Validate any connectivity documented on the diagram by physically examining the cable connections for the downstream and upstream links, as well as connections for major network components (Routers, Switches, Firewalls, IDS/IPS, etc.).

If the site has not maintained network topology diagrams for the enclave, this is a finding.
Fix Text (F-54741r806013_fix)
Update the enclave's network topology diagram to represent the current state of the network and its connectivity.