Automatic Number Identification (ANI) must be enabled when available.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-7991	DSN18.06	SV-8477r2_rule		Low

Description
ANI must be enabled on modem lines to record access to remote access ports when this function is available. The logs will be maintained and reviewed. ANI logs should be kept for the previous twelve months. ANI logs are ideal for auditing unauthorized accesses and toll-fraud.

STIG	Date
Defense Switched Network (DSN) STIG	2017-01-19

Details

Check Text ( C-61959r1_chk )
Review site documentation to confirm ANI is enabled when available. If ANI is available but not enabled on all modems connected to DSN system, this is a finding.

Fix Text (F-7566r2_fix)
Implement ANI when available on all modems connected to DSN system. Maintain and review ANI logs periodically. ANI logs should be stored for a period of twelve months.