II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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NET0180
Group -
All global address ranges used on unclassified and classified networks must be properly registered with the DoD Network Information Center (NIC).
If network address space is not properly configured, managed, and controlled, the network could be accessed by unauthorized personnel resulting in security compromise of site information and resour...Rule Medium Severity -
NET0185
Group -
Network Address Translation (NAT) and private IP address space must not be deployed within the SIPRNet enclave.
The DoD has an enterprise level security-focused configuration management (SecCM) requirement to support end-to-end monitoring of SIPRNet, as a National Security System (NSS). The use of NAT and pr...Rule Medium Severity -
NET0198
Group -
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.
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 addre...Rule Medium Severity -
NET0199
Group -
Dynamic Host Configuration Protocol (DHCP) servers used within SIPRNet infrastructure must be configured with a minimum lease duration time of 30 days.
In order to trace, audit, and investigate suspicious activity, DHCP servers within the SIPRNet infrastructure must have the minimum lease duration time configured to 30 or more days.Rule Low Severity -
NET0210
Group -
All network infrastructure devices must be located in a secure room with limited access.
If all communications devices are not installed within controlled access areas, risk of unauthorized access and equipment failure exists, which could result in denial of service or security comprom...Rule Medium Severity
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