I - Mission Critical Classified
Rules and Groups employed by this XCCDF Profile
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The Enterprise Voice, Video, and Messaging system connecting with a DISN IPVS must be configured to signal with a backup Multifunction Soft Switch (MFSS) (or SS) if the primary cannot be reached.
Redundancy of equipment and associations is used in an IP network to increase the availability of a system. Multiple MFSSs in the DISN NIPRNet IPVS network and multiple SSs in the DISN SIPRNet IPVS...Rule Medium Severity -
SRG-VOIP-000580
Group -
The Multifunction Soft Switch (MFSS) must be configured to synchronize with at minimum a paired MFSS and/or others so that each may serve as a backup for the other when signaling with its assigned Local Session Controller (LSC), thus improving the reliability and survivability of the DISN IPVS network.
MFSSs are critical to the operation of the DISN NIPRNet IPVS network. They broker the establishment of calls between enclaves. An MFSS provides the following functions: - Receives AS-SIP-TLS messa...Rule Medium Severity -
SRG-VOIP-000590
Group -
A MAC Authentication Bypass policy must be implemented for 802.1x unsupported devices that connect to the Enterprise Voice, Video, and Messaging system.
MAC Authentication Bypass (MAB) is not a sufficient stand-alone authentication mechanism for non-802.1x supplicant endpoints. Additional policy-based validation techniques must be developed to ensu...Rule Medium Severity
Node 2
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