As everyone knows, firewall design entails far more than configuration of the firewall. Processes that comprise an organizationís overall security policy inform decisions such as which firewall features will be used, where the firewall will be enforced, and, ultimately, how the firewall will be configured.
Firewall technology has evolved from packet filter firewalls to todayís next-generation firewalls. At each stage of firewall evolution, new services and solutions emerged to address the expanding complexity of the cyber landscape, to protect resources, and to block and trap attempts by cyber attackers to breach the firewall for nefarious purposes. Todayís sophisticated firewalls incorporate a range of features and services that are the outgrowth of these stages of firewall evolution.
This Learn About covers a set of five sequential steps to follow when designing a firewall, and best practices accenting firewall planning and design are provided throughout. These steps apply whether you plan to deploy a single firewall with limited features or full-featured firewalls for various areas of your environment.