EVS-ISO/IEC 27033-4:2015

This part of ISO/IEC 27033 gives guidance for securing communications between networks using security gateways (firewall, application firewall, Intrusion Protection System, etc.) in accordance with a documented information security policy of the security gateways, including:
a) identifying and analysing network security threats associated with security gateways;
b) defining network security requirements for security gateways based on threat analysis;
c) using techniques for design and implementation to address the threats and control aspects associated with typical network scenarios; and
d) addressing issues associated with implementing, operating, monitoring and reviewing network security gateways controls.