Examples of traffic filtering and monitoring systems are firewalls, routers, intrusion detection or prevention systems (IDS / IPS) and network devices / servers / applications with similar functionalities.
To ensure the functionality of filtering and monitoring:
- An owner has been appointed for the systems, who takes care of the proper operation of the system throughout the life cycle of the data processing environment
- It is the responsibility of the system owner to add, change, and delete settings for systems that filter or control traffic
- Documentation of the network and associated filtering and control systems is maintained throughout its lifecycle as an integral part of the change and settings management process
- The settings and desired operation of the systems are checked periodically during the operation and maintenance of the data processing environment and in the event of exceptional situations
