The IAO/NSO will ensure all managed network elements are configured to use two or more NTP servers to synchronize time.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-23747	NET0812	SV-28651r2_rule	ECSC-1	Low

Description
Without synchronized time, accurately correlating information between devices becomes difficult, if not impossible. If you cannot successfully compare logs between each of your routers, switches, and firewalls, it will be very difficult to determine the exact events that resulted in a network breach incident. NTP provides an efficient and scalable method for network elements to synchronize to an accurate time source.

Description

Without synchronized time, accurately correlating information between devices becomes difficult, if not impossible. If you cannot successfully compare logs between each of your routers, switches, and firewalls, it will be very difficult to determine the exact events that resulted in a network breach incident. NTP provides an efficient and scalable method for network elements to synchronize to an accurate time source.

STIG	Date
Free Space Optics Device Security Technical Implementation Guide	2011-10-07

Details

Check Text ( C-3581r3_chk )
Review the configuration and verify that two NTP servers have been defined.

Fix Text (F-3044r3_fix)
Specify two NTP server IP addresses on the device to be used to request time from.