The network element must analyze outbound communications traffic at selected interior points within the network as deemed necessary to discover anomalies.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
SRG-NET-000264-FW-NA	SRG-NET-000264-FW-NA	SRG-NET-000264-FW-NA_rule		Medium

Description
Sensors must be deployed at strategic locations within the network. At a minimum, they must be deployed within the DMZ and behind the firewall. It is important to not only monitor traffic entering the enclave but also leaving. Placing a sensor behind the firewall will provide a clear analysis of what type of traffic and potential attacks are passing through the firewall. Monitoring outbound traffic enables the network operator to detect an attack towards another network with the local enclave as the base. Monitoring outbound traffic can also detect abnormal traffic or mischievous activities by internal personnel. This control applies to monitoring by intrusion detection systems and is not applicable to the firewall function.

Description

Sensors must be deployed at strategic locations within the network. At a minimum, they must be deployed within the DMZ and behind the firewall. It is important to not only monitor traffic entering the enclave but also leaving. Placing a sensor behind the firewall will provide a clear analysis of what type of traffic and potential attacks are passing through the firewall. Monitoring outbound traffic enables the network operator to detect an attack towards another network with the local enclave as the base. Monitoring outbound traffic can also detect abnormal traffic or mischievous activities by internal personnel. This control applies to monitoring by intrusion detection systems and is not applicable to the firewall function.

STIG	Date
Firewall Security Requirements Guide	2012-12-10

Details

Check Text ( C-SRG-NET-000264-FW-NA_chk )
This requirement is NA for firewall. No fix required.

Fix Text (F-SRG-NET-000264-FW-NA_fix)
This requirement is NA for firewall. No fix required.